Colour Contrast Checker
Check the contrast between different colour combinations against WCAG standards
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manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"manifest_version": 3,
"name": "Colour Contrast Checker",
"short_name": "CC Checker",
"description": "Check the contrast between different colour combinations against WCAG standards",
"version": "1.4.2",
"action": {
"default_title": "Open CC Checker"
},
"icons": {
"16": "./favicons/favicon-16x16.png",
"48": "./favicons/favicon-48x48.png",
"128": "./favicons/favicon-128x128.png"
},
"permissions": [
"activeTab"
],
"web_accessible_resources": [
{
"resources": [
"index.html",
"fonts/avenir-next-variable.woff2"
],
"matches": [
"<all_urls>"
],
"use_dynamic_url": true
}
],
"background": {
"service_worker": "./app/background.js"
},
"content_scripts": [
{
"matches": [
"<all_urls>"
],
"js": [
"./app/content.js"
]
}
]
}