Add file icon for the Odin programming language (#43855)

Release Notes:

- Added file icon for the [Odin programming
language](https://odin-lang.org/).

<img width="617" height="288" alt="CleanShot 2025-11-30 at 22 37 00"
src="https://github.com/user-attachments/assets/2389b90a-2fec-43bf-838f-1441f08b724a"
/>

assets/icons/file_icons/odin.svg

@@ -0,0 +1,10 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_1_2)">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M4.58747 12.9359C4.35741 12.778 4.17558 12.625 4.17558 12.625L10.092 2.37749C10.092 2.37749 10.3355 2.46782 10.5367 2.56426C10.7903 2.6858 11.0003 2.80429 11.0003 2.80429C13.8681 4.46005 14.8523 8.13267 13.1965 11.0005C11.5407 13.8684 7.8681 14.8525 5.00023 13.1967C5.00023 13.1967 4.79936 13.0812 4.58747 12.9359ZM10.5003 3.67032L5.50023 12.3307C7.89013 13.7105 10.9506 12.8904 12.3305 10.5006C13.7102 8.1106 12.8902 5.05015 10.5003 3.67032ZM3.07664 11.4314C2.87558 11.1403 2.804 11.0006 2.804 11.0006C1.77036 9.20524 1.69456 6.92215 2.80404 5.00046C3.91353 3.07877 5.92859 2.00291 8.0003 2.00036C8.0003 2.00036 8.28 1.99964 8.51289 2.02194C8.86375 2.05556 9.09702 2.10083 9.09702 2.10083L3.43905 11.9007C3.43905 11.9007 3.30482 11.7618 3.07664 11.4314ZM7.40178 3.03702C5.89399 3.22027 4.48727 4.08506 3.67008 5.50052C2.85288 6.9159 2.80733 8.56653 3.40252 9.96401L7.40178 3.03702Z" fill="black" stroke="black" stroke-width="0.1"/>
+</g>
+<defs>
+<clipPath id="clip0_1_2">
+<rect width="16" height="16" fill="white"/>
+</clipPath>
+</defs>
+</svg>

crates/theme/src/icon_theme.rs

@@ -167,6 +167,7 @@ const FILE_SUFFIXES_BY_ICON_KEY: &[(&str, &[&str])] = &[
     ("nim", &["nim"]),
     ("nix", &["nix"]),
     ("ocaml", &["ml", "mli"]),
+    ("odin", &["odin"]),
     ("php", &["php"]),
     (
         "prettier",
@@ -332,6 +333,7 @@ const FILE_ICONS: &[(&str, &str)] = &[
     ("nim", "icons/file_icons/nim.svg"),
     ("nix", "icons/file_icons/nix.svg"),
     ("ocaml", "icons/file_icons/ocaml.svg"),
+    ("odin", "icons/file_icons/odin.svg"),
     ("phoenix", "icons/file_icons/phoenix.svg"),
     ("php", "icons/file_icons/php.svg"),
     ("prettier", "icons/file_icons/prettier.svg"),