chrome-extensionSet extension icon

{
  "name": "My",
  // ...
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },,
  // ...
}ctrl + cyoutubegithub

`16` specify path to 16x16 icon, `icon16.png` should be placed in the same directory as manifest.json	`48` specify path to 48x48 icon
`128` specify path to 128x128 icon

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