The contrast checker shows a heatmap of the contrast ratio between the middle and surrounding pixels.

Latest Version

Version
1.0
Update
January 5, 2025
Size
173KiB
Developer
Category
Users
0
Rating
0 ★
Manifest Version
3
Web Store Status
Languages Support
English
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Permissions
ActiveTab
Storage
Scripting
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contrast checker Extension

The contrast checker shows a heatmap of the contrast ratio between the middle and surrounding pixels. The contrast setting can be changed in the extension options. Press Alt+Z (Ctrl+Z on MAC) or click on it's icon to start the extension.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "contrast checker", "version": "1.0", "description": "The contrast checker shows a heatmap of the contrast ratio between the middle and surrounding pixels.", "default_locale": "en", "icons": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png", "512": "icon.png" }, "browser_action": { "default_title": "contrast checker" }, "background": { "service_worker": "background.js" }, "options_ui": { "page": "options.html" }, "commands": { "_execute_browser_action": { "suggested_key": { "default": "Alt+Z", "mac": "MacCtrl+Z" } } }, "permissions" : [ "activeTab", "storage", "scripting" ], "action": { "default_icon": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" } }}
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