Examine source code of Steins;Gate_basic-theme

{
  "name": "Steins;Gate_basic-theme",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Daru_theme-firefox2.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(250, 250, 250, 1)",
      "toolbar": "rgba(59, 59, 59, 0.44)",
      "bookmark_text": "rgba(235, 202, 38, 1)",
      "toolbar_field": "rgba(97, 97, 97, 1)",
      "toolbar_field_text": "rgba(240, 240, 240, 1)"
    }
  }
}