Examine source code of Bitten 2 - Group Shot

{
  "name": "Bitten 2 - Group Shot",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(1, 12, 32, 1)",
      "tab_background_text": "#edf0fc",
      "toolbar": "rgba(205, 214, 230, 0.09)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(230, 230, 230, 1)"
    }
  }
}