Examine source code of Royal Champion

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Royal Champion",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-020-48c286b34e53380d46803c2e5603a5b2.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(14, 5, 19)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(29, 9, 41)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(29, 9, 41)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(236, 168, 0, 0.5)",
      "popup": "rgb(29, 9, 41)",
      "popup_text": "rgb(255, 254, 242)",
      "button_background_hover": "rgba(255, 203, 0, 0.29)",
      "icons_attention": "rgb(255, 134, 0)",
      "icons": "rgb(199, 178, 122)",
      "ntp_background": "rgb(17, 6, 25)",
      "popup_border": "rgba(236, 168, 0, 0.5)",
      "popup_highlight_text": "rgba(255, 185, 0, 0.81)",
      "popup_highlight": "rgba(143, 0, 236, 0.31)",
      "sidebar_border": "rgb(236, 168, 0)",
      "sidebar_highlight_text": "rgb(236, 168, 0)",
      "sidebar_highlight": "rgb(236, 168, 0)",
      "sidebar": "rgb(13, 4, 19)",
      "tab_loading": "rgb(236, 168, 0)",
      "tab_selected": "rgb(46, 15, 63)",
      "toolbar_bottom_separator": "rgb(17, 6, 25)",
      "toolbar_field_border_focus": "rgba(236, 168, 0, 0.5)",
      "toolbar_field_border": "rgb(12, 4, 18)",
      "toolbar_field_highlight_text": "rgb(40, 11, 57)",
      "toolbar_field_separator": "rgb(18, 5, 25)",
      "toolbar_top_separator": "rgb(65, 32, 84)"
    }
  }
}