Examine source code of red 2

{
  "name": "Red Mobile",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "20201016_224257.jpg"
    },
    "colors": {
      "frame": "rgba(255, 18, 18, 1)",
      "tab_background_text": "rgba(255, 0, 0, 1)",
      "toolbar": "rgba(13, 1, 1, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(242, 239, 239, 1)"
    }
  }
}