Examine source code of BigSur Day

{
  "name": "__MSG_name__",
  "description": "__MSG_description__",
  "manifest_version": 2,
  "version": "0.0.1",
  "default_locale": "en",
  "icons": {
    "128": "icon.png"
  },
  "theme": {
    "colors": {
      "bookmark_text": [
        80,
        80,
        80
      ],
      "tab_text": [
        80,
        80,
        80
      ],
      "omnibox_text": [
        80,
        80,
        80
      ],
      "ntp_text": [
        80,
        80,
        80
      ],
      "tab_background_text": [
        140,
        140,
        140
      ],
      "toolbar": [
        242,
        242,
        242
      ],
      "background_tab_inactive": [
        242,
        242,
        242
      ],
      "background_tab_incognito": [
        242,
        242,
        242
      ],
      "background_tab_incognito_inactive": [
        242,
        242,
        242
      ],
      "background_tab": [
        242,
        242,
        242
      ],
      "ntp_header": [
        242,
        242,
        242
      ],
      "ntp_background": [
        255,
        255,
        255
      ],
      "omnibox_background": [
        255,
        255,
        255
      ],
      "frame_inactive": [
        72,
        82,
        102
      ],
      "frame_incognito": [
        72,
        82,
        102
      ],
      "frame_incognito_inactive": [
        72,
        82,
        102
      ],
      "frame": [
        72,
        82,
        102
      ],
      "ntp_link": [
        51,
        58,
        71
      ]
    },
    "tints": {
      "buttons": [
        0,
        0,
        0.4
      ]
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c26f77c1-9e7c-4717-b2b1-3edbc11ce27b}"
    }
  }
}