Examine source code of dance kill

{
  "name": "dance kill",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "32349092_1599450980103988_6312372804264132608_n.jpg"
    },
    "colors": {
      "frame": "rgba(20, 21, 23, 1)",
      "tab_background_text": "rgba(240, 115, 65, 1)",
      "toolbar": "rgba(31, 29, 29, 0.74)",
      "bookmark_text": "rgba(240, 115, 65, 1)",
      "toolbar_field": "rgba(240, 115, 65, 1)",
      "toolbar_field_text": "rgba(20, 18, 18, 1)"
    }
  }
}