Examine source code of Greenery theme

{
  "name": "Greenery theme",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Screenshot_20201230_165317.png"
    },
    "colors": {
      "frame": "rgba(31, 31, 31, 1)",
      "tab_background_text": "rgba(139, 93, 53, 1)",
      "toolbar": "rgba(76, 92, 63, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(31, 31, 31, 1)",
      "toolbar_field_text": "rgba(219, 0, 157, 1)"
    }
  }
}