Examine source code of Sakure

{
  "name": "Sakura",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "original(1).gif"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 0)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(76, 255, 234, 0.43)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 189, 189, 1)",
      "toolbar_field_text": "rgba(255, 240, 240, 1)"
    }
  }
}