Examine source code of Sea of roses

{
  "manifest_version": 2,
  "version": "10.0",
  "name": "Blumenmeer",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(64, 64, 64, 0.85)",
      "toolbar_text": "rgb(251, 251, 251)",
      "frame": "rgb(77, 77, 77)",
      "tab_background_text": "rgb(212, 209, 209)",
      "toolbar_field": "rgb(143, 143, 143)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(66, 72, 189, 0.71)",
      "popup": "rgb(143, 143, 143)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgba(116, 189, 66, 0.71)",
      "button_background_hover": "rgba(66, 72, 189, 0.71)",
      "icons_attention": "rgba(115, 222, 30, 0.92)",
      "icons": "rgb(223, 223, 223)",
      "popup_border": "rgba(66, 72, 189, 0.71)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(91, 146, 47, 0.92)",
      "sidebar_border": "rgba(255, 255, 255, 0)",
      "sidebar_highlight_text": "rgb(0, 0, 0)",
      "sidebar_highlight": "rgba(164, 208, 129, 0.92)",
      "sidebar_text": "rgb(223, 223, 223)",
      "sidebar": "rgb(90, 88, 88)",
      "tab_loading": "rgba(115, 222, 30, 0.76)",
      "tab_selected": "rgba(89, 90, 140, 0.73)",
      "tab_text": "rgb(223, 223, 223)",
      "toolbar_bottom_separator": "rgb(58, 59, 58)",
      "toolbar_field_border_focus": "rgba(0, 0, 0, 0)",
      "toolbar_field_border": "rgba(66, 72, 189, 0.71)",
      "toolbar_field_focus": "rgba(104, 104, 104, 0)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgba(91, 146, 47, 0.92)",
      "toolbar_field_text_focus": "rgb(0, 0, 0)",
      "toolbar_top_separator": "rgba(89, 90, 140, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{82404dc5-6613-4df3-a372-9cd56bc5a4b6}"
    }
  }
}