Examine source code of RedSideTheme

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "RedSideTheme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(128, 5, 1)",
      "toolbar_text": "rgb(255, 164, 164)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 126, 126)",
      "toolbar_field": "rgb(128, 5, 1)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0.58)",
      "popup": "rgb(75, 5, 3)",
      "popup_text": "rgb(255, 215, 208)",
      "button_background_active": "rgba(255, 9, 0, 0.81)",
      "button_background_hover": "rgba(255, 16, 0, 0.46)",
      "frame_inactive": "rgb(71, 3, 0)",
      "icons_attention": "rgb(193, 36, 23)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(75, 5, 3)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(128, 5, 1)",
      "tab_loading": "rgb(255, 24, 3)",
      "tab_selected": "rgb(128, 5, 1)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(255, 255, 255, 0.37)",
      "toolbar_field_border_focus": "rgb(255, 0, 0)",
      "toolbar_field_border": "rgba(255, 0, 0, 0.53)",
      "toolbar_field_focus": "rgba(75, 5, 3, 0.93)",
      "toolbar_field_highlight_text": "rgb(245, 152, 148)",
      "toolbar_field_highlight": "rgb(151, 6, 2)",
      "toolbar_field_separator": "rgb(81, 0, 0)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0.47)",
      "toolbar_vertical_separator": "rgba(226, 37, 37, 0.75)"
    }
  }
}