Examine source code of SlatePurple

{
  "name": "SlatePurple",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "xparent-5x5.png"
    },
    "colors": {
      "frame": "rgba(56, 56, 56, 1)",
      "tab_background_text": "rgba(100, 68, 155, 1)",
      "toolbar": "rgba(235, 235, 235, 0.5)",
      "bookmark_text": "rgba(100, 68, 155, 1)",
      "toolbar_field": "rgba(101, 67, 156, 0.5)",
      "toolbar_field_text": "rgba(56, 56, 56, 1)",
      "tab_line": "rgba(100, 68, 155, 1)"
    }
  }
}