Examine source code of Purple Murple

{
  "name": "Purple Murple",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "colors": {
      "frame": "#83667C",
      "tab_background_text": "#CBCBCB",
      "tab_background_separator": "#83667C",
      "tab_selected": "#403149",
      "tab_line": "#403149",
      "tab_loading": "#ADADAD",
      "tab_text": "#CBCBCB",
      "icons": "#ADADAD",
      "icons_attention": "#ADADAD",
      "toolbar": "#403149",
      "bookmark_text": "#CCCCCC",
      "toolbar_vertical_separator": "#AEA08B",
      "toolbar_top_separator": "#403149",
      "toolbar_bottom_separator": "#403149",
      "toolbar_field": "#513F5B",
      "toolbar_field_text": "#CCCCCC",
      "toolbar_field_separator": "#AEA08B",
      "toolbar_field_border": "#513F5B",
      "toolbar_field_focus": "#100F11",
      "toolbar_field_border_focus": "#100F11",
      "toolbar_field_text_focus": "#CCCCCC",
      "popup": "#513F5B",
      "popup_text": "#CCCCCC",
      "popup_border": "#513F5B",
      "popup_highlight": "#83667C",
      "popup_highlight_text": "F2F2F2",
      "sidebar": "#513F5B",
      "sidebar_text": "#CCCCCC",
      "sidebar_highlight": "#83667C",
      "sidebar_highlight_text": "F2F2F2",
      "sidebar_border": "#513F5B"
    }
  }
}