Examine source code of Secluded by M♥Donna

{
  "name": "Secluded by M♥Donna",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "rsz_secluded_in_autumn_custom.jpg"
    },
    "colors": {
      "frame": "rgba(119, 64, 50, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(120, 65, 50, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(120, 65, 50, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  }
}