Examine source code of Blue Silk77

{
  "name": "Blue Silk",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "gdssss2.jpg"
    },
    "colors": {
      "frame": "rgba(126, 163, 242, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(68, 88, 199, 0.53)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(202, 216, 227, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}