Examine source code of BASSICGAMEBOY

{
  "name": "Gamer",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dev.jpg"
    },
    "colors": {
      "frame": "rgba(0, 77, 255, 1)",
      "tab_background_text": "rgba(255, 0, 0, 1)",
      "toolbar": "rgba(250, 250, 250, 1)",
      "bookmark_text": "rgba(240, 0, 0, 1)",
      "toolbar_field": "rgba(255, 31, 31, 1)",
      "toolbar_field_text": "rgba(24, 9, 230, 1)",
      "tab_line": "rgba(255, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7e2894be-5594-42e1-a2c0-f6d7f9ef2fa1}"
    }
  }
}