Examine source code of Qiyu Grey

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Qiyu Grey",
  "theme": {
    "colors": {
      "toolbar": "#f6f6f6",
      "tab_line": "#2a95ed",
      "tab_text": "#151616",
      "bookmark_text": "#373737",
      "frame": "#e1e1e1",
      "frame_inactive": "#f0f0f0",
      "tab_background_text": "#5e5e5e",
      "toolbar_field": "#ffffff",
      "toolbar_field_text": "#000000",
      "toolbar_field_text_focus": "#000000",
      "toolbar_field_focus": "#ffffff",
      "toolbar_field_border": "#d4d4d4",
      "toolbar_field_border_focus": "#d4d4d4",
      "toolbar_field_highlight": "#0078d7",
      "toolbar_field_highlight_text": "#ffffff",
      "toolbar_field_separator": "#d3d3d3",
      "toolbar_text": "#373737",
      "toolbar_top_separator": "#d4d4d4",
      "toolbar_bottom_separator": "#d3d3d3",
      "toolbar_vertical_separator": "#f6f6f6",
      "tab_background_separator": "#7b7b7b",
      "popup": "#fbfbfb",
      "popup_text": "#202124",
      "popup_border": "#b4b4b4",
      "popup_highlight": "#0078d7",
      "popup_highlight_text": "#ffffff",
      "tab_loading": "#a6a6a6",
      "tab_selected": "#f6f6f6",
      "sidebar": "#fbfbfb",
      "sidebar_highlight": "#d5d5d5",
      "sidebar_highlight_text": "#000000",
      "sidebar_text": "#202124",
      "sidebar_border": "#e0e0e0",
      "button_background_active": "#9f9f9f",
      "button_background_hover": "#c7c7c7",
      "icons": "#313131",
      "icons_attention": "#ffd200",
      "ntp_background": "#f7f7f7",
      "ntp_link": "#333333",
      "ntp_text": "#333333"
    }
  }
}