Examine source code of ODST rain theme

{
  "name": "ODST rain theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "odst.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 0)",
      "tab_background_text": "rgba(189, 251, 255, 0.7)",
      "toolbar": "rgba(9, 25, 56, 0.7)",
      "bookmark_text": "rgba(0, 238, 255, 1)",
      "toolbar_field": "rgba(201, 253, 255, 0.4)",
      "toolbar_field_text": "rgba(186, 234, 255, 1)",
      "tab_line": "rgba(18, 140, 134, 0.5)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{79ea2b8c-1373-4c27-92fb-379ff789fd9a}"
    }
  }
}