Examine source code of Beautiful Theme By Jess

{
  "name": "Beautiful Theme By Jess",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "holo aesthetic.jpg"
    },
    "colors": {
      "toolbar_field": "rgba(168, 104, 104, 1)",
      "toolbar_field_text": "rgba(77, 25, 25, 1)",
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(97, 55, 55, 1)",
      "bookmark_text": "rgba(158, 90, 90, 1)"
    }
  }
}