Examine source code of Deep Bluegreen

{
  "name": "Deep Bluegreen",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "deepbluegreen2_preview.png"
    },
    "colors": {
      "frame": "rgb(30, 60, 65)",
      "tab_background_text": "rgb(230, 245, 250)",
      "toolbar": "rgba(50, 75, 80, 0.6)",
      "bookmark_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(90, 110, 110, 0.4)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(200, 140, 10)"
    }
  }
}