Examine source code of TAMA

{
  "name": "TAMA",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "favicon-32x32.png"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(13, 49, 148, 1)",
      "toolbar": "rgba(186, 150, 52, 1)",
      "bookmark_text": "rgba(6, 9, 105, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(5, 18, 120, 1)"
    }
  }
}