Examine source code of Coffinspired

{
  "name": "Coffinspired",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "bg.png"
    },
    "colors": {
      "frame": "rgba(19, 20, 17, 1)",
      "tab_background_text": "rgba(245, 232, 166, 1)",
      "toolbar": "rgba(40, 41, 34, 1)",
      "bookmark_text": "rgba(78, 148, 131, 1)",
      "toolbar_field": "rgba(61, 46, 60, 1)",
      "toolbar_field_text": "rgba(183, 189, 155, 1)",
      "tab_line": "rgba(153, 158, 121, 1)"
    }
  }
}