Examine source code of Tropical Theme

{
  "name": "Tropical",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "raphael-menesclou-Y8O_3xuz_H0-unsplash.jpg"
    },
    "colors": {
      "frame": "rgba(7, 115, 21, 1)",
      "tab_background_text": "rgba(54, 54, 54, 1)",
      "toolbar": "rgba(8, 89, 35, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(7, 115, 21, 1)",
      "toolbar_field_text": "rgba(54, 54, 54, 1)"
    }
  }
}