Replace tinycolor2 with colord (#36673)

[`colord`](https://github.com/omgovich/colord) is significantly smaller
than [`tinycolor2`](https://github.com/bgrins/TinyColor) (~4KB vs ~29KB
minified) and ships its own TypeScript types, removing the need for
`@types/tinycolor2`.

Behaviour is exactly the same for our use cases. By using `.alpha(1)` we
force the function to always output 6-digit hex format (it would output
8-digit for non-opaque colors).

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -52,7 +52,7 @@
     "swagger-ui-dist": "5.31.1",
     "tailwindcss": "3.4.17",
     "throttle-debounce": "5.0.2",
-    "tinycolor2": "1.6.0",
+    "colord": "2.9.3",
     "tippy.js": "6.3.7",
     "toastify-js": "1.12.0",
     "tributejs": "5.1.3",
@@ -82,7 +82,6 @@
     "@types/sortablejs": "1.15.9",
     "@types/swagger-ui-dist": "3.30.6",
     "@types/throttle-debounce": "5.0.2",
-    "@types/tinycolor2": "1.4.6",
     "@types/toastify-js": "1.12.4",
     "@typescript-eslint/parser": "8.56.0",
     "@vitejs/plugin-vue": "6.0.4",

pnpm-lock.yaml

@@ -89,6 +89,9 @@ importers:
       clippie:
         specifier: 4.1.10
         version: 4.1.10
+      colord:
+        specifier: 2.9.3
+        version: 2.9.3
       compare-versions:
         specifier: 6.1.1
         version: 6.1.1
@@ -164,9 +167,6 @@ importers:
       throttle-debounce:
         specifier: 5.0.2
         version: 5.0.2
-      tinycolor2:
-        specifier: 1.6.0
-        version: 1.6.0
       tippy.js:
         specifier: 6.3.7
         version: 6.3.7
@@ -249,9 +249,6 @@ importers:
       '@types/throttle-debounce':
         specifier: 5.0.2
         version: 5.0.2
-      '@types/tinycolor2':
-        specifier: 1.4.6
-        version: 1.4.6
       '@types/toastify-js':
         specifier: 1.12.4
         version: 1.12.4
@@ -1297,9 +1294,6 @@ packages:
   '@types/throttle-debounce@5.0.2':
     resolution: {integrity: sha512-pDzSNulqooSKvSNcksnV72nk8p7gRqN8As71Sp28nov1IgmPKWbOEIwAWvBME5pPTtaXJAvG3O4oc76HlQ4kqQ==}
 
-  '@types/tinycolor2@1.4.6':
-    resolution: {integrity: sha512-iEN8J0BoMnsWBqjVbWH/c0G0Hh7O21lpR2/+PrvAVgWdzL7eexIFm4JN/Wn10PTcmNdtS6U67r499mlWMXOxNw==}
-
   '@types/toastify-js@1.12.4':
     resolution: {integrity: sha512-zfZHU4tKffPCnZRe7pjv/eFKzTVHozKewFCKaCjZ4gFinKgJRz/t0bkZiMCXJxPhv/ZoeDGNOeRD09R0kQZ/nw==}
 
@@ -4056,9 +4050,6 @@ packages:
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
-  tinycolor2@1.6.0:
-    resolution: {integrity: sha512-XPaBkWQJdsf3pLKJV9p4qN/S+fm2Oj8AIPo1BTUhg5oxkvm9+SVEGFdhyOz7tTdUTfvxMiAs4sp6/eZO2Ew+pw==}
-
   tinyexec@1.0.2:
     resolution: {integrity: sha512-W/KYk+NFhkmsYpuHq5JykngiOCnxeVL8v8dFnqxSD8qEEdRfXk1SDM6JzNqcERbcGYj9tMrDQBYV9cjgnunFIg==}
     engines: {node: '>=18'}
@@ -5241,8 +5232,6 @@ snapshots:
 
   '@types/throttle-debounce@5.0.2': {}
 
-  '@types/tinycolor2@1.4.6': {}
-
   '@types/toastify-js@1.12.4': {}
 
   '@types/trusted-types@2.0.7':
@@ -8215,8 +8204,6 @@ snapshots:
 
   tinybench@2.9.0: {}
 
-  tinycolor2@1.6.0: {}
-
   tinyexec@1.0.2: {}
 
   tinyglobby@0.2.15:

web_src/js/features/codeeditor.ts

@@ -1,4 +1,4 @@
-import tinycolor from 'tinycolor2';
+import {colord} from 'colord';
 import {basename, extname, isObject, isDarkTheme} from '../utils.ts';
 import {onInputDebounce} from '../utils/dom.ts';
 import type MonacoNamespace from 'monaco-editor';
@@ -94,7 +94,7 @@ function updateTheme(monaco: Monaco): void {
   // https://github.com/microsoft/monaco-editor/issues/2427
   // also, monaco can only parse 6-digit hex colors, so we convert the colors to that format
   const styles = window.getComputedStyle(document.documentElement);
-  const getColor = (name: string) => tinycolor(styles.getPropertyValue(name).trim()).toString('hex6');
+  const getColor = (name: string) => colord(styles.getPropertyValue(name).trim()).alpha(1).toHex();
 
   monaco.editor.defineTheme('gitea', {
     base: isDarkTheme() ? 'vs-dark' : 'vs',

web_src/js/utils/color.ts

@@ -1,22 +1,21 @@
-import tinycolor from 'tinycolor2';
-import type {ColorInput} from 'tinycolor2';
+import {colord} from 'colord';
+import type {AnyColor} from 'colord';
 
 /** Returns relative luminance for a SRGB color - https://en.wikipedia.org/wiki/Relative_luminance */
 // Keep this in sync with modules/util/color.go
-function getRelativeLuminance(color: ColorInput): number {
-  const {r, g, b} = tinycolor(color).toRgb();
+function getRelativeLuminance(color: AnyColor): number {
+  const {r, g, b} = colord(color).toRgb();
   return (0.2126729 * r + 0.7151522 * g + 0.072175 * b) / 255;
 }
 
-function useLightText(backgroundColor: ColorInput): boolean {
+function useLightText(backgroundColor: AnyColor): boolean {
   return getRelativeLuminance(backgroundColor) < 0.453;
 }
 
-/** Given a background color, returns a black or white foreground color that the highest
- *  contrast ratio. */
+/** Given a background color, returns a black or white foreground color with the highest contrast ratio. */
 // In the future, the APCA contrast function, or CSS `contrast-color` will be better.
 // https://github.com/color-js/color.js/blob/eb7b53f7a13bb716ec8b28c7a56f052cd599acd9/src/contrast/APCA.js#L42
-export function contrastColor(backgroundColor: ColorInput): string {
+export function contrastColor(backgroundColor: AnyColor): string {
   return useLightText(backgroundColor) ? '#fff' : '#000';
 }