Examine source code of choax2

{
  "name": "choax2",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "choax2.png"
    },
    "colors": {
      "frame": "rgba(209, 218, 235, 0)",
      "tab_background_text": "rgba(14, 230, 86, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(38, 235, 12, 1)",
      "toolbar_field": "rgba(139, 207, 180, 0)",
      "toolbar_field_text": "rgba(23, 240, 19, 1)"
    }
  }
}