Examine source code of dark green aesthetic

{
  "name": "dark green aesthetic",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Design ohne Titel.jpg"
    },
    "colors": {
      "frame": "rgba(37, 74, 24, 0)",
      "tab_background_text": "rgba(76, 112, 77, 1)",
      "toolbar": "rgba(88, 120, 101, 0.75)",
      "bookmark_text": "rgba(75, 112, 76, 1)",
      "toolbar_field": "rgba(81, 138, 102, 0.7)",
      "toolbar_field_text": "rgba(76, 112, 77, 1)",
      "tab_line": "rgba(0, 0, 0, 0.42)"
    }
  }
}