Examine source code of Lavender

{
  "name": "Lavender",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "gray-banner-background-1900x900.jpg"
    },
    "colors": {
      "frame": "rgba(232, 225, 225, 0.76)",
      "tab_background_text": "rgba(0, 0, 0, 0.75)",
      "toolbar": "rgba(136, 122, 214, 0.32)",
      "bookmark_text": "rgba(0, 0, 0, 0.75)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 0.75)",
      "tab_line": "rgba(138, 128, 217, 0.15)"
    }
  }
}