CustomGradientPicker: Refactor to TypeScript

package.json

@@ -22,6 +22,7 @@
 		"IS_GUTENBERG_PLUGIN": true
 	},
 	"dependencies": {
+		"@types/gradient-parser": "0.1.2",
 		"@wordpress/a11y": "file:packages/a11y",
 		"@wordpress/annotations": "file:packages/annotations",
 		"@wordpress/api-fetch": "file:packages/api-fetch",

packages/components/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Internal
+
+-   `CustomGradientPicker`: Convert to TypeScript ([#48929](https://github.com/WordPress/gutenberg/pull/48929)).
+
 ## 23.6.0 (2023-03-15)
 
 ### Enhancements
@@ -12,8 +16,8 @@
 
 ### Bug Fix
 
--  `ResponsiveWrapper`: use `aspect-ratio` CSS prop, add support for `SVG` elements ([#48573](https://github.com/WordPress/gutenberg/pull/48573).
--  `ResizeTooltip`: Use `default.fontFamily` on tooltip ([#48805](https://github.com/WordPress/gutenberg/pull/48805).
+-   `ResponsiveWrapper`: use `aspect-ratio` CSS prop, add support for `SVG` elements ([#48573](https://github.com/WordPress/gutenberg/pull/48573).
+-   `ResizeTooltip`: Use `default.fontFamily` on tooltip ([#48805](https://github.com/WordPress/gutenberg/pull/48805).
 
 ### Internal
 
@@ -37,7 +41,7 @@
 
 ### Enhancements
 
--  `ToolsPanel`: Separate reset all filter registration from items registration and support global resets ([#48123](https://github.com/WordPress/gutenberg/pull/48123)).
+-   `ToolsPanel`: Separate reset all filter registration from items registration and support global resets ([#48123](https://github.com/WordPress/gutenberg/pull/48123)).
 
 ### Internal
 

packages/components/src/custom-gradient-picker/constants.js → packages/components/src/custom-gradient-picker/constants.ts

@@ -10,8 +10,8 @@ export const DEFAULT_LINEAR_GRADIENT_ANGLE = 180;
 
 export const HORIZONTAL_GRADIENT_ORIENTATION = {
 	type: 'angular',
-	value: 90,
-};
+	value: '90',
+} as const;
 
 export const GRADIENT_OPTIONS = [
 	{ value: 'linear-gradient', label: __( 'Linear' ) },