diff --git a/Cargo.lock b/Cargo.lock
index 359f147..8772f5d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,22 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "ab_glyph"
+version = "0.2.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80179d7dd5d7e8c285d67c4a1e652972a92de7475beddfb92028c76463b13225"
+dependencies = [
+ "ab_glyph_rasterizer",
+ "owned_ttf_parser",
+]
+
+[[package]]
+name = "ab_glyph_rasterizer"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c71b1793ee61086797f5c80b6efa2b8ffa6d5dd703f118545808a7f2e27f7046"
+
 [[package]]
 name = "addr2line"
 version = "0.20.0"
@@ -37,6 +53,30 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "android-activity"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64529721f27c2314ced0890ce45e469574a73e5e6fdd6e9da1860eb29285f5e0"
+dependencies = [
+ "android-properties",
+ "bitflags 1.3.2",
+ "cc",
+ "jni-sys",
+ "libc",
+ "log",
+ "ndk",
+ "ndk-context",
+ "ndk-sys",
+ "num_enum 0.6.1",
+]
+
+[[package]]
+name = "android-properties"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc7eb209b1518d6bb87b283c20095f5228ecda460da70b44f0802523dea6da04"
+
 [[package]]
 name = "android-tzdata"
 version = "0.1.1"
@@ -76,6 +116,18 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "arrayref"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b4930d2cb77ce62f89ee5d5289b4ac049559b1c45539271f5ed4fdc7db34545"
+
+[[package]]
+name = "arrayvec"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
+
 [[package]]
 name = "async-trait"
 version = "0.1.77"
@@ -175,6 +227,12 @@ version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
 
+[[package]]
+name = "block"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -184,6 +242,25 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-sys"
+version = "0.1.0-beta.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fa55741ee90902547802152aaf3f8e5248aab7e21468089560d4c8840561146"
+dependencies = [
+ "objc-sys",
+]
+
+[[package]]
+name = "block2"
+version = "0.2.0-alpha.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8dd9e63c1744f755c2f60332b88de39d341e5e86239014ad839bd71c106dec42"
+dependencies = [
+ "block-sys",
+ "objc2-encode",
+]
+
 [[package]]
 name = "bork"
 version = "0.2.1"
@@ -261,6 +338,20 @@ dependencies = [
  "x11",
 ]
 
+[[package]]
+name = "calloop"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52e0d00eb1ea24371a97d2da6201c6747a633dc6dc1988ef503403b4c59504a8"
+dependencies = [
+ "bitflags 1.3.2",
+ "log",
+ "nix 0.25.1",
+ "slotmap",
+ "thiserror",
+ "vec_map",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.79"
@@ -295,6 +386,21 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "cfg_aliases"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
+
+[[package]]
+name = "cgl"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ced0551234e87afee12411d535648dd89d2e7f34c78b753395567aff3d447ff"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "chrono"
 version = "0.4.31"
@@ -317,6 +423,7 @@ dependencies = [
  "async-trait",
  "cairo-rs",
  "epoxy",
+ "euclid",
  "femtovg",
  "geo",
  "geo-macros",
@@ -347,6 +454,7 @@ dependencies = [
  "relm4-icons",
  "rstar",
  "shapefile",
+ "surfman",
  "svg",
  "thiserror",
  "tokio",
@@ -398,6 +506,36 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "cocoa"
+version = "0.24.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f425db7937052c684daec3bd6375c8abe2d146dca4b8b143d6db777c39138f3a"
+dependencies = [
+ "bitflags 1.3.2",
+ "block",
+ "cocoa-foundation",
+ "core-foundation",
+ "core-graphics",
+ "foreign-types",
+ "libc",
+ "objc",
+]
+
+[[package]]
+name = "cocoa-foundation"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c6234cbb2e4c785b456c0644748b1ac416dd045799740356f8363dfe00c93f7"
+dependencies = [
+ "bitflags 1.3.2",
+ "block",
+ "core-foundation",
+ "core-graphics-types",
+ "libc",
+ "objc",
+]
+
 [[package]]
 name = "color_quant"
 version = "1.1.0"
@@ -522,7 +660,7 @@ dependencies = [
  "autocfg",
  "cfg-if",
  "crossbeam-utils",
- "memoffset",
+ "memoffset 0.9.0",
  "scopeguard",
 ]
 
@@ -653,6 +791,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "dispatch"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd0c93bb4b0c6d9b77f4435b0ae98c24d17f1c45b2ff844c6151a07256ca923b"
+
 [[package]]
 name = "dlib"
 version = "0.5.2"
@@ -662,6 +806,12 @@ dependencies = [
  "libloading 0.8.0",
 ]
 
+[[package]]
+name = "downcast-rs"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
+
 [[package]]
 name = "dwrote"
 version = "0.11.0"
@@ -709,7 +859,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b96028ce3ff03972312fd8243281858e80fc0f9838b1f035676b6c199214d9e"
 dependencies = [
- "gl_generator",
+ "gl_generator 0.9.0",
  "libc",
  "pkg-config",
  "shared_library",
@@ -721,6 +871,15 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "88bffebc5d80432c9b140ee17875ff173a8ab62faad5b257da912bd2f6c1c0a1"
 
+[[package]]
+name = "euclid"
+version = "0.22.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f253bc5c813ca05792837a0ff4b3a580336b224512d48f7eda1d7dd9210787"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "exr"
 version = "1.7.0"
@@ -773,7 +932,7 @@ version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38e2275cc4e4fc009b0669731a1e5ab7ebf11f469eaede2bab9309a5b4d6057f"
 dependencies = [
- "memoffset",
+ "memoffset 0.9.0",
  "rustc_version",
 ]
 
@@ -786,7 +945,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall 0.2.16",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1205,9 +1364,20 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a795170cbd85b5a7baa58d6d7525cae6a03e486859860c220f7ebbbdd379d0a"
 dependencies = [
- "khronos_api",
+ "khronos_api 2.2.0",
  "log",
- "xml-rs",
+ "xml-rs 0.7.0",
+]
+
+[[package]]
+name = "gl_generator"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a95dfc23a2b4a9a2f5ab41d194f8bfda3cabec42af4e39f08c339eb2a0c124d"
+dependencies = [
+ "khronos_api 3.1.0",
+ "log",
+ "xml-rs 0.8.19",
 ]
 
 [[package]]
@@ -1423,7 +1593,7 @@ dependencies = [
  "byteorder",
  "flate2",
  "lazy_static",
- "memmap2",
+ "memmap2 0.7.1",
  "quick-xml",
  "safe-transmute",
  "serde",
@@ -1578,6 +1748,30 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "io-surface"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "861c6093cbc05599e66436aedf380bb0a23cec2180738393d3a340b80dd135ef"
+dependencies = [
+ "cgl",
+ "core-foundation",
+ "leaky-cow",
+ "libc",
+]
+
 [[package]]
 name = "itertools"
 version = "0.10.5"
@@ -1593,6 +1787,12 @@ version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
 
+[[package]]
+name = "jni-sys"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
+
 [[package]]
 name = "jobserver"
 version = "0.1.26"
@@ -1626,6 +1826,12 @@ version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "037ab472c33f67b5fbd3e9163a2645319e5356fcd355efa6d4eb7fff4bbcb554"
 
+[[package]]
+name = "khronos_api"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2db585e1d738fc771bf08a151420d3ed193d9d895a36df7f6f8a9456b911ddc"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1638,6 +1844,21 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
+[[package]]
+name = "leak"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd100e01f1154f2908dfa7d02219aeab25d0b9c7fa955164192e3245255a0c73"
+
+[[package]]
+name = "leaky-cow"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40a8225d44241fd324a8af2806ba635fc7c8a7e9a7de4d5cf3ef54e71f5926fc"
+dependencies = [
+ "leak",
+]
+
 [[package]]
 name = "lebe"
 version = "0.5.2"
@@ -1700,7 +1921,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d580318f95776505201b28cf98eb1fa5e4be3b689633ba6a3e6cd880ff22d8cb"
 dependencies = [
  "cfg-if",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1720,6 +1941,17 @@ dependencies = [
  "redox_syscall 0.4.1",
 ]
 
+[[package]]
+name = "libredox"
+version = "0.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3af92c55d7d839293953fcd0fda5ecfe93297cfde6ffbdec13b41d99c0ba6607"
+dependencies = [
+ "bitflags 2.3.3",
+ "libc",
+ "redox_syscall 0.4.1",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.10"
@@ -1742,6 +1974,24 @@ version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "718e8fae447df0c7e1ba7f5189829e63fd536945c8988d61444c19039f16b670"
 
+[[package]]
+name = "mach"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "malloc_buf"
+version = "0.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "matrixmultiply"
 version = "0.3.7"
@@ -1758,6 +2008,15 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
+[[package]]
+name = "memmap2"
+version = "0.5.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83faa42c0a078c393f6b29d5db232d8be22776a891f8f56e5284faee4a20b327"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memmap2"
 version = "0.7.1"
@@ -1767,6 +2026,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.9.0"
@@ -1776,6 +2044,20 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "metal"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de11355d1f6781482d027a3b4d4de7825dcedb197bf573e0596d00008402d060"
+dependencies = [
+ "bitflags 1.3.2",
+ "block",
+ "core-graphics-types",
+ "foreign-types",
+ "log",
+ "objc",
+]
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -1792,6 +2074,18 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "mio"
+version = "0.8.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
+dependencies = [
+ "libc",
+ "log",
+ "wasi",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "nanorand"
 version = "0.7.0"
@@ -1815,6 +2109,60 @@ dependencies = [
  "rayon",
 ]
 
+[[package]]
+name = "ndk"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "451422b7e4718271c8b5b3aadf5adedba43dc76312454b387e98fae0fc951aa0"
+dependencies = [
+ "bitflags 1.3.2",
+ "jni-sys",
+ "ndk-sys",
+ "num_enum 0.5.11",
+ "raw-window-handle",
+ "thiserror",
+]
+
+[[package]]
+name = "ndk-context"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27b02d87554356db9e9a873add8782d4ea6e3e58ea071a9adb9a2e8ddb884a8b"
+
+[[package]]
+name = "ndk-sys"
+version = "0.4.1+23.1.7779620"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3cf2aae958bd232cac5069850591667ad422d263686d75b52a065f9badeee5a3"
+dependencies = [
+ "jni-sys",
+]
+
+[[package]]
+name = "nix"
+version = "0.24.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa52e972a9a719cecb6864fb88568781eb706bac2cd1d4f04a648542dbf78069"
+dependencies = [
+ "bitflags 1.3.2",
+ "cfg-if",
+ "libc",
+ "memoffset 0.6.5",
+]
+
+[[package]]
+name = "nix"
+version = "0.25.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f346ff70e7dbfd675fe90590b92d59ef2de15a8779ae305ebcbfd3f0caf59be4"
+dependencies = [
+ "autocfg",
+ "bitflags 1.3.2",
+ "cfg-if",
+ "libc",
+ "memoffset 0.6.5",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -1956,6 +2304,113 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "num_enum"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f646caf906c20226733ed5b1374287eb97e3c2a5c227ce668c1f2ce20ae57c9"
+dependencies = [
+ "num_enum_derive 0.5.11",
+]
+
+[[package]]
+name = "num_enum"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a015b430d3c108a207fd776d2e2196aaf8b1cf8cf93253e3a097ff3085076a1"
+dependencies = [
+ "num_enum_derive 0.6.1",
+]
+
+[[package]]
+name = "num_enum_derive"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcbff9bc912032c62bf65ef1d5aea88983b420f4f839db1e9b0c281a25c9c799"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2 1.0.76",
+ "quote 1.0.35",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "num_enum_derive"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96667db765a921f7b295ffee8b60472b686a51d4f21c2ee4ffdb94c7013b65a6"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2 1.0.76",
+ "quote 1.0.35",
+ "syn 2.0.48",
+]
+
+[[package]]
+name = "objc"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
+dependencies = [
+ "malloc_buf",
+ "objc_exception",
+]
+
+[[package]]
+name = "objc-foundation"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1add1b659e36c9607c7aab864a76c7a4c2760cd0cd2e120f3fb8b952c7e22bf9"
+dependencies = [
+ "block",
+ "objc",
+ "objc_id",
+]
+
+[[package]]
+name = "objc-sys"
+version = "0.2.0-beta.2"
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+checksum = "df3b9834c1e95694a05a828b59f55fa2afec6288359cda67146126b3f90a55d7"
+
+[[package]]
+name = "objc2"
+version = "0.3.0-beta.3.patch-leaks.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e01640f9f2cb1220bbe80325e179e532cb3379ebcd1bf2279d703c19fe3a468"
+dependencies = [
+ "block2",
+ "objc-sys",
+ "objc2-encode",
+]
+
+[[package]]
+name = "objc2-encode"
+version = "2.0.0-pre.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abfcac41015b00a120608fdaa6938c44cb983fee294351cc4bac7638b4e50512"
+dependencies = [
+ "objc-sys",
+]
+
+[[package]]
+name = "objc_exception"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad970fb455818ad6cba4c122ad012fae53ae8b4795f86378bce65e4f6bab2ca4"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "objc_id"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c92d4ddb4bd7b50d730c215ff871754d0da6b2178849f8a2a2ab69712d0c073b"
+dependencies = [
+ "objc",
+]
+
 [[package]]
 name = "object"
 version = "0.31.1"
@@ -1971,6 +2426,24 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "orbclient"
+version = "0.3.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52f0d54bde9774d3a51dcf281a5def240c71996bc6ca05d2c847ec8b2b216166"
+dependencies = [
+ "libredox 0.0.2",
+]
+
+[[package]]
+name = "owned_ttf_parser"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4586edfe4c648c71797a74c84bacb32b52b212eff5dfe2bb9f2c599844023e7"
+dependencies = [
+ "ttf-parser 0.20.0",
+]
+
 [[package]]
 name = "pango"
 version = "0.17.10"
@@ -2064,6 +2537,12 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
 
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
 [[package]]
 name = "pest"
 version = "2.7.0"
@@ -2364,6 +2843,12 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 
+[[package]]
+name = "raw-window-handle"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2ff9a1f06a88b01621b7ae906ef0211290d1c8a168a15542486a8f61c0833b9"
+
 [[package]]
 name = "rawpointer"
 version = "0.2.1"
@@ -2401,6 +2886,15 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.4.1"
@@ -2417,7 +2911,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a18479200779601e498ada4e8c1e1f50e3ee19deb0259c25825a98b5603b2cb4"
 dependencies = [
  "getrandom",
- "libredox",
+ "libredox 0.0.1",
  "thiserror",
 ]
 
@@ -2572,6 +3066,12 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "scoped-tls"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
+
 [[package]]
 name = "scoped_threadpool"
 version = "0.1.9"
@@ -2584,6 +3084,19 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "sctk-adwaita"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cda4e97be1fd174ccc2aae81c8b694e803fa99b34e8fd0f057a9d70698e3ed09"
+dependencies = [
+ "ab_glyph",
+ "log",
+ "memmap2 0.5.10",
+ "smithay-client-toolkit",
+ "tiny-skia",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.17"
@@ -2630,6 +3143,19 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "servo-display-link"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1060be2a0bbc35e712ec35ae98119b8def1071a5f2edbe392fd4c899bc2a5f4"
+dependencies = [
+ "foreign-types",
+ "objc",
+ "objc-foundation",
+ "thiserror",
+ "time-point",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.5"
@@ -2709,6 +3235,25 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
+[[package]]
+name = "smithay-client-toolkit"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "870427e30b8f2cbe64bf43ec4b86e88fe39b0a84b3f15efd9c9c2d020bc86eb9"
+dependencies = [
+ "bitflags 1.3.2",
+ "calloop",
+ "dlib",
+ "lazy_static",
+ "log",
+ "memmap2 0.5.10",
+ "nix 0.24.3",
+ "pkg-config",
+ "wayland-client",
+ "wayland-cursor",
+ "wayland-protocols",
+]
+
 [[package]]
 name = "spin"
 version = "0.9.8"
@@ -2730,6 +3275,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "strict-num"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6637bab7722d379c8b41ba849228d680cc12d0a45ba1fa2b48f2a30577a06731"
+
 [[package]]
 name = "strsim"
 version = "0.7.0"
@@ -2748,6 +3299,35 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
+[[package]]
+name = "surfman"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db2e4280229411d6eb8a8f873152dece1904df2682003bdc748adc181e003568"
+dependencies = [
+ "bitflags 1.3.2",
+ "cfg_aliases",
+ "cgl",
+ "cocoa",
+ "core-foundation",
+ "core-graphics",
+ "euclid",
+ "gl_generator 0.14.0",
+ "io-surface",
+ "lazy_static",
+ "libc",
+ "log",
+ "mach",
+ "metal",
+ "objc",
+ "raw-window-handle",
+ "servo-display-link",
+ "wayland-sys 0.30.1",
+ "winapi",
+ "winit",
+ "wio",
+]
+
 [[package]]
 name = "svg"
 version = "0.13.1"
@@ -2882,6 +3462,37 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
 
+[[package]]
+name = "time-point"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06535c958d6abe68dc4b4ef9e6845f758fc42fe463d0093d0aca40254f03fb14"
+
+[[package]]
+name = "tiny-skia"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df8493a203431061e901613751931f047d1971337153f96d0e5e363d6dbf6a67"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "bytemuck",
+ "cfg-if",
+ "png",
+ "tiny-skia-path",
+]
+
+[[package]]
+name = "tiny-skia-path"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adbfb5d3f3dd57a0e11d12f4f13d4ebbbc1b5c15b7ab0a156d030b21da5f677c"
+dependencies = [
+ "arrayref",
+ "bytemuck",
+ "strict-num",
+]
+
 [[package]]
 name = "tokio"
 version = "1.35.1"
@@ -3016,6 +3627,12 @@ version = "0.18.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0609f771ad9c6155384897e1df4d948e692667cc0588548b68eb44d052b27633"
 
+[[package]]
+name = "ttf-parser"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17f77d76d837a7830fe1d4f12b7b4ba4192c1888001c7164257e4bc6d21d96b4"
+
 [[package]]
 name = "typenum"
 version = "1.16.0"
@@ -3170,6 +3787,91 @@ version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
 
+[[package]]
+name = "wayland-client"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f3b068c05a039c9f755f881dc50f01732214f5685e379829759088967c46715"
+dependencies = [
+ "bitflags 1.3.2",
+ "downcast-rs",
+ "libc",
+ "nix 0.24.3",
+ "scoped-tls",
+ "wayland-commons",
+ "wayland-scanner",
+ "wayland-sys 0.29.5",
+]
+
+[[package]]
+name = "wayland-commons"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8691f134d584a33a6606d9d717b95c4fa20065605f798a3f350d78dced02a902"
+dependencies = [
+ "nix 0.24.3",
+ "once_cell",
+ "smallvec",
+ "wayland-sys 0.29.5",
+]
+
+[[package]]
+name = "wayland-cursor"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6865c6b66f13d6257bef1cd40cbfe8ef2f150fb8ebbdb1e8e873455931377661"
+dependencies = [
+ "nix 0.24.3",
+ "wayland-client",
+ "xcursor",
+]
+
+[[package]]
+name = "wayland-protocols"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b950621f9354b322ee817a23474e479b34be96c2e909c14f7bc0100e9a970bc6"
+dependencies = [
+ "bitflags 1.3.2",
+ "wayland-client",
+ "wayland-commons",
+ "wayland-scanner",
+]
+
+[[package]]
+name = "wayland-scanner"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f4303d8fa22ab852f789e75a967f0a2cdc430a607751c0499bada3e451cbd53"
+dependencies = [
+ "proc-macro2 1.0.76",
+ "quote 1.0.35",
+ "xml-rs 0.7.0",
+]
+
+[[package]]
+name = "wayland-sys"
+version = "0.29.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be12ce1a3c39ec7dba25594b97b42cb3195d54953ddb9d3d95a7c3902bc6e9d4"
+dependencies = [
+ "dlib",
+ "lazy_static",
+ "pkg-config",
+]
+
+[[package]]
+name = "wayland-sys"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96b2a02ac608e07132978689a6f9bf4214949c85998c247abadd4f4129b1aa06"
+dependencies = [
+ "dlib",
+ "lazy_static",
+ "log",
+ "pkg-config",
+]
+
 [[package]]
 name = "web-sys"
 version = "0.3.64"
@@ -3237,6 +3939,15 @@ dependencies = [
  "windows-targets 0.52.0",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -3246,6 +3957,21 @@ dependencies = [
  "windows-targets 0.48.1",
 ]
 
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.48.1"
@@ -3276,6 +4002,12 @@ dependencies = [
  "windows_x86_64_msvc 0.52.0",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.48.0"
@@ -3288,6 +4020,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.48.0"
@@ -3300,6 +4038,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.48.0"
@@ -3312,6 +4056,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.48.0"
@@ -3324,6 +4074,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.48.0"
@@ -3336,6 +4092,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.48.0"
@@ -3348,6 +4110,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.48.0"
@@ -3360,6 +4128,41 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
+[[package]]
+name = "winit"
+version = "0.28.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9596d90b45384f5281384ab204224876e8e8bf7d58366d9b795ad99aa9894b94"
+dependencies = [
+ "android-activity",
+ "bitflags 1.3.2",
+ "cfg_aliases",
+ "core-foundation",
+ "core-graphics",
+ "dispatch",
+ "instant",
+ "libc",
+ "log",
+ "mio",
+ "ndk",
+ "objc2",
+ "once_cell",
+ "orbclient",
+ "percent-encoding",
+ "raw-window-handle",
+ "redox_syscall 0.3.5",
+ "sctk-adwaita",
+ "smithay-client-toolkit",
+ "wasm-bindgen",
+ "wayland-client",
+ "wayland-commons",
+ "wayland-protocols",
+ "wayland-scanner",
+ "web-sys",
+ "windows-sys 0.45.0",
+ "x11-dl",
+]
+
 [[package]]
 name = "winnow"
 version = "0.4.7"
@@ -3388,6 +4191,17 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "x11-dl"
+version = "2.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38735924fedd5314a6e548792904ed8c6de6636285cb9fec04d5b1db85c1516f"
+dependencies = [
+ "libc",
+ "once_cell",
+ "pkg-config",
+]
+
 [[package]]
 name = "xattr"
 version = "0.2.3"
@@ -3397,6 +4211,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "xcursor"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a0ccd7b4a5345edfcd0c3535718a4e9ff7798ffc536bb5b5a0e26ff84732911"
+
 [[package]]
 name = "xml-rs"
 version = "0.7.0"
@@ -3406,6 +4226,12 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "xml-rs"
+version = "0.8.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fcb9cbac069e033553e8bb871be2fbdffcab578eb25bd0f7c508cedc6dcd75a"
+
 [[package]]
 name = "yeslogic-fontconfig-sys"
 version = "3.2.0"
diff --git a/Cargo.toml b/Cargo.toml
index 6d4c106..ba3da21 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,6 +45,8 @@ async-trait = "0.1.77"
 lazy_static = "1.4.0"
 once_cell = "1.19.0"
 relm4-icons = {version="0.6.0",features=["add-filled","delete-filled","chevron-up-filled","chevron-down-filled"]}
+surfman = "0.8.1"
+euclid = "0.22.9"
 # plotters-cairo = "0.5.0"
 
 
diff --git a/back.txt b/back.txt
index 24a753e..cbf3b09 100644
--- a/back.txt
+++ b/back.txt
@@ -262,4 +262,84 @@ pub enum DownSampleMeth {
 pub enum CoordType {
     Polar,
     LatLon,
-}
\ No newline at end of file
+}
+
+
+// let levels: Vec<i8> = vec![0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65];
+//     let colors = vec![
+//         RGBABuilder::default()
+//             .red(0 as f32 / 255.0)
+//             .green(172 as f32 / 255.0)
+//             .blue(164 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(192 as f32 / 255.0)
+//             .green(192 as f32 / 255.0)
+//             .blue(254 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(122 as f32 / 255.0)
+//             .green(114 as f32 / 255.0)
+//             .blue(238 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(30 as f32 / 255.0)
+//             .green(38 as f32 / 255.0)
+//             .blue(208 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(166 as f32 / 255.0)
+//             .green(252 as f32 / 255.0)
+//             .blue(168 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(0 as f32 / 255.0)
+//             .green(234 as f32 / 255.0)
+//             .blue(0 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(16 as f32 / 255.0)
+//             .green(146 as f32 / 255.0)
+//             .blue(26 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(252 as f32 / 255.0)
+//             .green(244 as f32 / 255.0)
+//             .blue(100 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(200 as f32 / 255.0)
+//             .green(200 as f32 / 255.0)
+//             .blue(2 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(140 as f32 / 255.0)
+//             .green(140 as f32 / 255.0)
+//             .blue(0 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(254 as f32 / 255.0)
+//             .green(172 as f32 / 255.0)
+//             .blue(172 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(254 as f32 / 255.0)
+//             .green(100 as f32 / 255.0)
+//             .blue(92 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(238 as f32 / 255.0)
+//             .green(2 as f32 / 255.0)
+//             .blue(48 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(212 as f32 / 255.0)
+//             .green(142 as f32 / 255.0)
+//             .blue(254 as f32 / 255.0)
+//             .build(),
+//         RGBABuilder::default()
+//             .red(170 as f32 / 255.0)
+//             .green(36 as f32 / 255.0)
+//             .blue(250 as f32 / 255.0)
+//             .build(),
+//     ];
diff --git a/src/dynamic_col/imp.rs b/src/dynamic_col/imp.rs
index 315a2e4..841f088 100644
--- a/src/dynamic_col/imp.rs
+++ b/src/dynamic_col/imp.rs
@@ -1,11 +1,15 @@
 use adw::subclass::bin::BinImpl;
+use glib::Properties;
 use gtk::glib::prelude::*;
 use gtk::prelude::*;
 use gtk::subclass::prelude::*;
 use std::cell::{Cell, RefCell};
 use std::num::NonZeroU32;
 
+#[derive(Properties)]
+#[properties(wrapper_type = super::DynamicCol)]
 pub struct DynamicCol {
+    #[property(get, set)]
     pub(super) child: RefCell<Option<gtk::Paned>>,
     pub(super) ratio: RefCell<Option<f64>>,
     width: Cell<i32>,
@@ -33,6 +37,11 @@ impl ObjectSubclass for DynamicCol {
 }
 
 impl ObjectImpl for DynamicCol {
+
+    fn constructed(&self) {
+        self.parent_constructed();
+    }
+
     fn dispose(&self) {
         if let Some(child) = self.child.borrow_mut().take() {
             child.unparent();
diff --git a/src/main.rs b/src/main.rs
index 4f9af71..77ade78 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,10 +1,12 @@
 mod utils;
 use gtk::prelude::*;
 use gtk::{gio, glib, Application, ApplicationWindow};
+use pipeline::offscreen_renderer::OffscreenRenderer;
 use relm4::menu;
 use relm4::RelmApp;
 use std::ptr;
 use tokio::runtime::Runtime;
+use utils::creator;
 mod chart;
 mod components;
 mod coords;
@@ -23,14 +25,16 @@ const APP_ID: &str = "org.gtk_rs.HelloWorld2";
 static RUNTIME: Lazy<Runtime> =
     Lazy::new(|| Runtime::new().expect("Setting up tokio runtime needs to succeed."));
 
+static OFFSCREEN: Lazy<OffscreenRenderer> = Lazy::new(|| OffscreenRenderer::new().expect("Can't create offscreen renderer."));
+
 fn main() {
     // Load GL pointers from epoxy (GL context management library used by GTK).
     {
         #[cfg(target_os = "macos")]
         let library =
-            unsafe { libloading::os::unix::Library::new("/opt/homebrew/lib/libepoxy.0.dylib") }.or(unsafe{
-                libloading::os::unix::Library::new("libepoxy.0.dylib")
-            }).unwrap();
+            unsafe { libloading::os::unix::Library::new("/opt/homebrew/lib/libepoxy.0.dylib") }
+                .or(unsafe { libloading::os::unix::Library::new("libepoxy.0.dylib") })
+                .unwrap();
 
         #[cfg(all(unix, not(target_os = "macos")))]
         let library = unsafe { libloading::os::unix::Library::new("libepoxy.so.0") }.unwrap();
diff --git a/src/pipeline/mod.rs b/src/pipeline/mod.rs
index 5e7ba5e..11de261 100644
--- a/src/pipeline/mod.rs
+++ b/src/pipeline/mod.rs
@@ -5,6 +5,7 @@ use image::RgbImage;
 use ndarray::parallel::prelude::*;
 use ndarray::{Array2, ArrayView2};
 use num_traits::{Num, AsPrimitive, FromPrimitive};
+pub mod offscreen_renderer;
 
 use crate::{
     coords::Mapper,
diff --git a/src/pipeline/offscreen_renderer.rs b/src/pipeline/offscreen_renderer.rs
new file mode 100644
index 0000000..2e1cdc5
--- /dev/null
+++ b/src/pipeline/offscreen_renderer.rs
@@ -0,0 +1,79 @@
+use euclid::Size2D;
+use femtovg::{renderer::OpenGl, Canvas};
+use std::num::NonZeroU32;
+use std::sync::{Mutex, RwLock};
+use std::{cell::RefCell, sync::Arc};
+use surfman::{device, Adapter, Connection, Context, Device, Error};
+
+pub struct OffscreenRenderer {
+    context: Arc<RwLock<Context>>,
+    device: Device,
+    // renderer: Arc<Mutex<femtovg::renderer::OpenGl>>,
+    canvas: Arc<RwLock<Canvas<OpenGl>>>,
+}
+
+impl OffscreenRenderer {
+    pub fn new() -> Result<Self, surfman::Error> {
+        let connection = Connection::new()?;
+        let adapter = connection.create_adapter()?;
+        let mut device = connection.create_device(&adapter)?;
+
+        let api = device.gl_api();
+
+        let descriptor = device.create_context_descriptor(&surfman::ContextAttributes {
+            version: surfman::GLVersion::new(3, 3),
+            flags: surfman::ContextAttributeFlags::empty(),
+        })?;
+
+        let mut context = device.create_context(&descriptor, None)?;
+        let mut surface = device.create_surface(
+            &context,
+            surfman::SurfaceAccess::GPUOnly,
+            surfman::SurfaceType::Generic {
+                size: euclid::Size2D::new(500, 500),
+            },
+        )?;
+
+        let surface_info = device.surface_info(&surface);
+        device
+            .bind_surface_to_context(&mut context, surface)
+            .expect("Failed to bind surface to context");
+        device.make_context_current(&context).unwrap();
+
+        static LOAD_FN: fn(&str) -> *const std::ffi::c_void =
+            |s| epoxy::get_proc_addr(s) as *const _;
+
+        let (mut renderer, fbo) = unsafe {
+            let renderer = OpenGl::new_from_function(LOAD_FN).expect("Cannot create renderer");
+            let fbo =
+                glow::NativeFramebuffer(NonZeroU32::new(surface_info.framebuffer_object).unwrap());
+            (renderer, fbo)
+        };
+
+        renderer.set_screen_target(Some(fbo));
+
+        let mut canvas = Canvas::new(renderer).expect("Cannot create canvas");
+        canvas.set_size(500, 500, 1.0);
+
+        Ok(Self {
+            context: Arc::new(RwLock::new(context)),
+            device,
+            canvas: Arc::new(RwLock::new(canvas)),
+        })
+    }
+
+    pub fn canvas(&self) -> Arc<RwLock<Canvas<OpenGl>>> {
+        self.canvas.clone()
+    }
+}
+
+impl Drop for OffscreenRenderer {
+    fn drop(&mut self) {
+        let mut context = self.context.write().unwrap();
+        self.device.destroy_context(&mut context).unwrap();
+        let _ = self;
+    }
+}
+
+unsafe impl Send for OffscreenRenderer {}
+unsafe impl Sync for OffscreenRenderer {}
diff --git a/src/render/cms.rs b/src/render/cms.rs
index e73208d..eba7282 100644
--- a/src/render/cms.rs
+++ b/src/render/cms.rs
@@ -8,6 +8,9 @@ pub struct CMS {
     bounds: (f64, f64, f64, f64),
 }
 
+unsafe impl Send for CMS {}
+unsafe impl Sync for CMS {}
+
 impl CMS {
     pub fn new(mapper: Mapper, window_size: (f32, f32)) -> Self {
         let bounds = mapper.get_bounds();
diff --git a/src/render/interior/layers.rs b/src/render/interior/layers.rs
index 18a412d..993e3aa 100644
--- a/src/render/interior/layers.rs
+++ b/src/render/interior/layers.rs
@@ -1,3 +1,4 @@
+use crate::render::cms::CMS;
 use crate::{coords::Range, render::Render};
 use femtovg::Paint;
 use femtovg::{renderer::OpenGl, Canvas, ImageId};
@@ -10,8 +11,15 @@ use std::{
     sync::{Arc, Mutex},
 };
 
-type PrepareFunc =
-    Box<dyn FnOnce(Arc<Layer>, Render) -> Pin<Box<dyn Future<Output = ()>>> + Sync + Send>;
+type PrepareFunc = Box<
+    dyn FnOnce(
+            Box<dyn LayerImpl>,
+            &mut Canvas<OpenGl>,
+            CMS,
+        ) -> Pin<Box<dyn Future<Output = Target>>>
+        + Sync
+        + Send,
+>;
 type DrawFunc = Box<dyn Fn(&Layer, Render, (f32, f32)) + Send + Sync>;
 type LayerImplSync = Box<dyn LayerImpl + Send + Sync>;
 
@@ -37,14 +45,14 @@ impl Debug for Layer {
 }
 
 pub trait LayerImpl: Debug {
-    fn draw(&self, render: Render) -> Option<Target>;
+    fn draw(&self, canvas: &mut Canvas<OpenGl>, cms: &CMS) -> Option<Target>;
 }
 
 impl Layer {
     pub fn new<
-        FU: Future<Output = ()> + 'static,
+        FU: Future<Output = Target> + Send + Sync + 'static,
         F: 'static + Fn(&Self, Render, (f32, f32)) + Send + Sync,
-        PREPARE: FnOnce(Arc<Layer>, Render) -> FU + Send + Sync + 'static,
+        PREPARE: FnOnce(Box<dyn LayerImpl>, &mut Canvas<OpenGl>, CMS) -> FU + Send + Sync + 'static,
         IMP: LayerImpl + Sync + Send + 'static,
     >(
         visiable: bool,
diff --git a/src/render/mod.rs b/src/render/mod.rs
index ae07117..522aa0d 100644
--- a/src/render/mod.rs
+++ b/src/render/mod.rs
@@ -190,4 +190,10 @@ impl Render {
     pub fn render_range(&self) -> ((f64, f64), (f64, f64)) {
         self.imp().window_range().unwrap()
     }
+
+    pub fn create_cms(&self) -> CMS {
+        let borrowed_mapper = &*self.imp().mapper.borrow();
+        let new_mapper = borrowed_mapper.clone();
+        CMS::new(new_mapper, (500.0, 500.0))
+    }
 }
diff --git a/src/render/predefined/grid_field_renderer.rs b/src/render/predefined/grid_field_renderer.rs
index 72f98de..0448c19 100644
--- a/src/render/predefined/grid_field_renderer.rs
+++ b/src/render/predefined/grid_field_renderer.rs
@@ -1,5 +1,7 @@
 use super::color_mapper::{BoundaryNorm, ColorMapper};
-use femtovg::{ImageFlags, Paint, Path, PixelFormat::Rgba8, RenderTarget};
+use femtovg::{
+    renderer::OpenGl, Canvas, ImageFlags, Paint, Path, PixelFormat::Rgba8, RenderTarget,
+};
 use geo_types::LineString;
 use ndarray::ArrayView2;
 use num_traits::{Num, NumOps};
@@ -8,7 +10,7 @@ use std::{fmt::Debug, marker::PhantomData};
 use super::super::renders::DataRenderer;
 use crate::{
     data::Radar2d,
-    render::{LayerImpl, Render, Target},
+    render::{cms::CMS, LayerImpl, Render, Target},
     utils::meshgrid,
 };
 
@@ -32,8 +34,8 @@ impl<T: NumOps + PartialOrd + Copy, CMAP: ColorMapper<T>> GridFieldRenderer<CMAP
     fn draw_2d(
         &self,
         canvas: &mut femtovg::Canvas<femtovg::renderer::OpenGl>,
+        cms: &CMS,
         data: ArrayView2<T>,
-        render: &Render,
         dims: (ArrayView2<f64>, ArrayView2<f64>),
         window_size: (f32, f32),
         fill_value: T,
@@ -48,45 +50,43 @@ impl<T: NumOps + PartialOrd + Copy, CMAP: ColorMapper<T>> GridFieldRenderer<CMAP
         let d2_s = dim2[[0, 0]];
         let d2_e = dim2[[rows - 1, 0]];
 
-        render.create_drawer((d1_s, d1_e, d2_s, d2_e), window_size, |cms| {
-            for r in 0..rows - 1 {
-                for c in 0..cols - 1 {
-                    let lb_lat = dim2[[r, c]];
-                    let lb_lon = dim1[[r, c]];
+        for r in 0..rows - 1 {
+            for c in 0..cols - 1 {
+                let lb_lat = dim2[[r, c]];
+                let lb_lon = dim1[[r, c]];
 
-                    let rt_lat = dim2[[r + 1, c + 1]];
-                    let rt_lon = dim1[[r + 1, c + 1]];
-                    let cell: LineString = vec![
-                        (lb_lon, lb_lat),
-                        (rt_lon + 0.001, lb_lat),
-                        (rt_lon + 0.001, rt_lat),
-                        (lb_lon, rt_lat + 0.001),
-                        (lb_lon, lb_lat + 0.001),
-                    ]
-                    .into();
+                let rt_lat = dim2[[r + 1, c + 1]];
+                let rt_lon = dim1[[r + 1, c + 1]];
+                let cell: LineString = vec![
+                    (lb_lon, lb_lat),
+                    (rt_lon + 0.001, lb_lat),
+                    (rt_lon + 0.001, rt_lat),
+                    (lb_lon, rt_lat + 0.001),
+                    (lb_lon, lb_lat + 0.001),
+                ]
+                .into();
 
-                    let v = &data[[r, c]];
-                    let mapped_color = self.cmap.map_value_to_color(*v, fill_value);
+                let v = &data[[r, c]];
+                let mapped_color = self.cmap.map_value_to_color(*v, fill_value);
 
-                    if None == mapped_color {
-                        continue;
-                    }
-
-                    let mapped_ring = cms.ring_map(&cell).unwrap();
-
-                    let mut path = Path::new();
-                    let mut points = mapped_ring.points();
-                    let first_point = points.next().unwrap();
-                    path.move_to(first_point.x(), first_point.y());
-
-                    for point in points {
-                        path.line_to(point.x(), point.y());
-                    }
-                    path.close();
-                    canvas.fill_path(&path, &Paint::color(mapped_color.unwrap()));
+                if None == mapped_color {
+                    continue;
                 }
+
+                let mapped_ring = cms.ring_map(&cell).unwrap();
+
+                let mut path = Path::new();
+                let mut points = mapped_ring.points();
+                let first_point = points.next().unwrap();
+                path.move_to(first_point.x(), first_point.y());
+
+                for point in points {
+                    path.line_to(point.x(), point.y());
+                }
+                path.close();
+                canvas.fill_path(&path, &Paint::color(mapped_color.unwrap()));
             }
-        });
+        }
     }
 }
 
@@ -96,47 +96,42 @@ where
     CMAP: ColorMapper<T>,
 {
     type Data = Radar2d<T>;
-    fn render(&self, render: Render, data: &Self::Data) -> Target {
-        let mut canvas = render.get_canvas();
-        let canvas = canvas.as_mut().unwrap();
 
-        let new_img = canvas
-            .create_image_empty(3000, 3000, Rgba8, ImageFlags::empty())
-            .expect("Can't Create Image");
-
-        canvas.save();
-        canvas.reset();
-
-        if let Ok(_) = canvas.image_size(new_img) {
-            canvas.set_render_target(RenderTarget::Image(new_img));
-            let _data = data.data.view();
-            let (_dim1, _dim2) = meshgrid(data.dim1.view(), data.dim2.view());
-            self.draw_2d(
-                canvas,
-                _data,
-                &render,
-                (_dim1.view(), _dim2.view()),
-                (3000.0, 3000.0),
-                data.fill_value,
-            );
-        }
-
-        canvas.restore();
-        canvas.set_render_target(RenderTarget::Screen);
-
-        let d1_start = (data.dim1.view()).first().unwrap().clone();
-        let d1_end = (data.dim1.view()).last().unwrap().clone();
-
-        let d2_start = data.dim2.view().first().unwrap().clone();
-        let d2_end = data.dim2.view().last().unwrap().clone();
-
-        Target::new(
-            new_img,
-            3000f32,
-            3000f32,
-            ((d1_start, d1_end).into(), (d2_start, d2_end).into()),
-        )
+    fn render(
+        &self,
+        canvas: &mut Canvas<OpenGl>,
+        cms: &CMS,
+        data: &Self::Data,
+        size: (f32, f32),
+    ) -> Target {
+        let (w, h) = size;
     }
+
+    // fn render(&self, canvas: &mut Canvas<OpenGl>, cms: &CMS, data: &Self::Data) -> Target {
+    //     let _data = data.data.view();
+    //     let (_dim1, _dim2) = meshgrid(data.dim1.view(), data.dim2.view());
+    //     self.draw_2d(
+    //         canvas,
+    //         cms,
+    //         _data,
+    //         (_dim1.view(), _dim2.view()),
+    //         (3000.0, 3000.0),
+    //         data.fill_value,
+    //     );
+
+    //     let d1_start = (data.dim1.view()).first().unwrap().clone();
+    //     let d1_end = (data.dim1.view()).last().unwrap().clone();
+
+    //     let d2_start = data.dim2.view().first().unwrap().clone();
+    //     let d2_end = data.dim2.view().last().unwrap().clone();
+
+    //     Target::new(
+    //         new_img,
+    //         3000f32,
+    //         3000f32,
+    //         ((d1_start, d1_end).into(), (d2_start, d2_end).into()),
+    //     )
+    // }
 }
 
 #[derive(Debug)]
@@ -166,7 +161,22 @@ where
     T: Num + NumOps + PartialOrd + Copy + Clone + Debug + Send + Sync,
     CMAP: ColorMapper<T> + Debug,
 {
-    fn draw(&self, render: Render) -> Option<Target> {
-        Some(self.renderer.render(render, &self.data))
+    fn draw(
+        &self,
+        canvas: &mut femtovg::Canvas<femtovg::renderer::OpenGl>,
+        cms: &crate::render::cms::CMS,
+    ) -> Option<Target> {
+        let new_img = canvas
+            .create_image_empty(3000, 3000, Rgba8, ImageFlags::empty())
+            .expect("Can't Create Image");
+
+        if let Ok(_) = canvas.image_size(new_img) {
+            canvas.reset();
+            canvas.set_render_target(RenderTarget::Image(new_img));
+        }
+
+        canvas.set_render_target(RenderTarget::Screen);
+
+        Some(self.renderer.render(Render::new(canvas, cms), &self.data))
     }
 }
diff --git a/src/render/predefined/layers.rs b/src/render/predefined/layers.rs
index ef6ae7e..cbfb792 100644
--- a/src/render/predefined/layers.rs
+++ b/src/render/predefined/layers.rs
@@ -1,8 +1,12 @@
 use femtovg::{renderer::OpenGl, Canvas, Paint};
 use num_traits::{Num, NumOps};
-use std::path::Path;
 use std::sync::Arc;
+use std::thread::spawn;
+use std::{os::unix::thread, path::Path};
 
+use crate::render::cms::CMS;
+use crate::render::{LayerImpl, Target};
+use crate::OFFSCREEN;
 use crate::{
     data::{AsyncDataLoader, DataLoader, Radar2d},
     render::{Layer, Render},
@@ -33,12 +37,13 @@ impl Layer {
                         path.rect(ox, oy, x, y);
                         c.fill_path(&path, &painter);
                     }
-                } else {
-                    if let Some(renderer) = s.get_imp().as_ref() {
+                }
+            },
+            layer_name,
+            Some(
+                |s_imp: Box<dyn LayerImpl>, c: &mut Canvas<OpenGl>, cms: CMS| async move {
+                    if let Some(renderer) = s.as_ref() {
                         let img = renderer.draw(render.clone()).unwrap();
-
-                        let mut c = render.get_canvas();
-                        let c = c.as_mut().unwrap();
                         if let Ok(_) = c.image_size(img.target) {
                             let (x, y) = img.size(&render);
                             let (ox, oy) = img.origin(&render);
@@ -50,14 +55,8 @@ impl Layer {
                             c.fill_path(&path, &painter);
                         }
                     }
-                }
-            },
-            layer_name,
-            Some(|s: Arc<Layer>, render: Render| async move {
-                if let None = s.render_target() {
-                    if let Some(renderer) = s.get_imp().as_ref() {}
-                }
-            }),
+                },
+            ),
             Some(GridLayerImpl::new(GridFieldRenderer::new(color_map), data)),
         )
     }
diff --git a/src/render/renders.rs b/src/render/renders.rs
index 2c4c86b..455be2f 100644
--- a/src/render/renders.rs
+++ b/src/render/renders.rs
@@ -1,8 +1,15 @@
+use super::cms::CMS;
 use super::Render;
 use super::Target;
 use femtovg::{renderer::OpenGl, Canvas};
 
 pub trait DataRenderer {
     type Data;
-    fn render(&self, render: Render, data: &Self::Data) -> Target;
+    fn render(
+        &self,
+        canvas: &mut Canvas<OpenGl>,
+        cms: &CMS,
+        data: &Self::Data,
+        size: (f32, f32),
+    ) -> Target;
 }
diff --git a/src/utils.rs b/src/utils.rs
index 573ed7a..aeb1c04 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,4 +1,12 @@
+use std::{borrow::BorrowMut, num::NonZeroU32};
+
+use euclid::Size2D;
+use femtovg::Canvas;
 use ndarray::{Array2, ArrayView1};
+use surfman::{
+    Connection, Context, ContextAttributeFlags, ContextAttributes, ContextDescriptor,
+    NativeConnection, NativeContext, SurfaceAccess, SurfaceType, Device, GLVersion,
+};
 
 pub fn meshgrid<T>(x: ArrayView1<T>, y: ArrayView1<T>) -> (Array2<T>, Array2<T>)
 where
@@ -10,81 +18,42 @@ where
     let yy = Array2::from_shape_fn(shape, |(i, _)| y[i].clone());
     (xx, yy)
 }
-// let levels: Vec<i8> = vec![0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65];
-//     let colors = vec![
-//         RGBABuilder::default()
-//             .red(0 as f32 / 255.0)
-//             .green(172 as f32 / 255.0)
-//             .blue(164 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(192 as f32 / 255.0)
-//             .green(192 as f32 / 255.0)
-//             .blue(254 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(122 as f32 / 255.0)
-//             .green(114 as f32 / 255.0)
-//             .blue(238 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(30 as f32 / 255.0)
-//             .green(38 as f32 / 255.0)
-//             .blue(208 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(166 as f32 / 255.0)
-//             .green(252 as f32 / 255.0)
-//             .blue(168 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(0 as f32 / 255.0)
-//             .green(234 as f32 / 255.0)
-//             .blue(0 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(16 as f32 / 255.0)
-//             .green(146 as f32 / 255.0)
-//             .blue(26 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(252 as f32 / 255.0)
-//             .green(244 as f32 / 255.0)
-//             .blue(100 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(200 as f32 / 255.0)
-//             .green(200 as f32 / 255.0)
-//             .blue(2 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(140 as f32 / 255.0)
-//             .green(140 as f32 / 255.0)
-//             .blue(0 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(254 as f32 / 255.0)
-//             .green(172 as f32 / 255.0)
-//             .blue(172 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(254 as f32 / 255.0)
-//             .green(100 as f32 / 255.0)
-//             .blue(92 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(238 as f32 / 255.0)
-//             .green(2 as f32 / 255.0)
-//             .blue(48 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(212 as f32 / 255.0)
-//             .green(142 as f32 / 255.0)
-//             .blue(254 as f32 / 255.0)
-//             .build(),
-//         RGBABuilder::default()
-//             .red(170 as f32 / 255.0)
-//             .green(36 as f32 / 255.0)
-//             .blue(250 as f32 / 255.0)
-//             .build(),
-//     ];
+
+pub fn creator() {
+    let connection = Connection::new().unwrap();
+    let adapter = connection.create_adapter().unwrap();
+    let mut device = connection.create_device(&adapter).unwrap();
+    let api = device.gl_api();
+    let descriptor = device.create_context_descriptor(&ContextAttributes {
+        version: GLVersion::new(3, 3),
+        flags: ContextAttributeFlags::empty(),
+    }).unwrap();
+
+    let mut context = device.create_context(&descriptor, None).unwrap();
+    let mut surface = device
+        .create_surface(
+            &context,
+            SurfaceAccess::GPUOnly,
+            SurfaceType::Generic {
+                size: Size2D::new(500, 500),
+            },
+        )
+        .unwrap();
+
+    let surface_info = device.surface_info(&surface);
+    device
+        .bind_surface_to_context(&mut context, surface)
+        .expect("Failed to bind surface to context");
+    device.make_context_current(&context).unwrap();
+    use femtovg::renderer::OpenGl;
+    static LOAD_FN: fn(&str) -> *const std::ffi::c_void = |s| epoxy::get_proc_addr(s) as *const _;
+    let (mut renderer, fbo) = unsafe {
+        let renderer = OpenGl::new_from_function(LOAD_FN).expect("Cannot create renderer");
+        let fbo =
+            glow::NativeFramebuffer(NonZeroU32::new(surface_info.framebuffer_object).unwrap());
+        (renderer, fbo)
+    };
+
+    renderer.set_screen_target(Some(fbo));
+    device.destroy_context(&mut context);
+}