Examine source code of Just Test V2

{
  "name": "Just Test V2",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "749811.jpg"
    },
    "colors": {
      "frame": "rgba(49, 111, 245, 1)",
      "tab_background_text": "rgba(76, 189, 255, 1)",
      "toolbar": "rgba(9, 60, 102, 1)",
      "bookmark_text": "rgba(0, 109, 199, 1)",
      "toolbar_field": "rgba(139, 238, 247, 1)",
      "toolbar_field_text": "rgba(0, 50, 158, 1)"
    }
  }
}