Examine source code of Qiyu Purple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Qiyu Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/frame.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "#71748f",
      "tab_line": "#717590",
      "tab_text": "#ffffff",
      "bookmark_text": "#e4e5e8",
      "frame": "#d3d3d3",
      "frame_inactive": "#d3d3d3",
      "tab_background_text": "#bdbec6",
      "toolbar_field": "#71748f",
      "toolbar_field_text": "#ffffff",
      "toolbar_field_text_focus": "#ffffff",
      "toolbar_field_focus": "#71748f",
      "toolbar_field_border": "#71748f",
      "toolbar_field_border_focus": "#71748f",
      "toolbar_field_highlight": "#0078d7",
      "toolbar_field_highlight_text": "#ffffff",
      "toolbar_field_separator": "#dedfe6",
      "toolbar_text": "#e4e5e8",
      "toolbar_top_separator": "#717590",
      "toolbar_bottom_separator": "#4d537d",
      "toolbar_vertical_separator": "#717590",
      "tab_background_separator": "#b7b8c5",
      "popup": "#4b5279",
      "popup_text": "#ffffff",
      "popup_border": "#3c4043",
      "popup_highlight": "#0078d7",
      "popup_highlight_text": "#ffffff",
      "tab_loading": "#a6a6a6",
      "tab_selected": "#717590",
      "sidebar": "#2d325a",
      "sidebar_highlight": "#489afb",
      "sidebar_highlight_text": "#ffffff",
      "sidebar_text": "#f0f0f0",
      "sidebar_border": "#3c4043",
      "button_background_active": "#313552",
      "button_background_hover": "#494c6a",
      "icons": "#ffffff",
      "icons_attention": "#ffd200",
      "ntp_background": "#333a63",
      "ntp_link": "#7d7d7d",
      "ntp_text": "#7d7d7d"
    }
  }
}