Examine source code of Burgundy Matte Theme

{
  "name": "Burgundy Matte Theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Sin título.jpg"
    },
    "colors": {
      "frame": "rgba(89, 41, 52, 1)",
      "tab_background_text": "rgba(184, 149, 156, 1)",
      "toolbar": "rgba(61, 24, 32, 1)",
      "bookmark_text": "rgba(230, 230, 230, 1)",
      "toolbar_field": "rgba(36, 12, 17, 1)",
      "toolbar_field_text": "rgba(230, 230, 230, 1)"
    }
  }
}