Rainbow DevTools Theme
Sample DevTools theme. Enable DevTools experiments in about:flags, then open DevTools and toggle "Allow UI themes" experiment.
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manifest.json
{
"update_url": "https://clients2.google.com/service/update2/crx",
"name": "Rainbow DevTools Theme",
"version": "1.1",
"description": "Sample DevTools theme. Enable DevTools experiments in about:flags, then open DevTools and toggle \"Allow UI themes\" experiment.",
"devtools_page": "devtools.html",
"manifest_version": 2
}