Examine source code of dark green solid

{
  "name": "dark green",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Screen Shot 2021-01-12 at 12.54.41 PM.png"
    },
    "colors": {
      "frame": "rgba(51, 61, 16, 1)",
      "tab_background_text": "rgba(66, 66, 66, 1)",
      "toolbar": "rgba(246, 246, 246, 1)",
      "bookmark_text": "rgba(66, 66, 66, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(66, 66, 66, 1)"
    }
  }
}