Examine source code of Palenight Dark

{
  "name": "Material Palenight",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "colors": {
      "icons_attention": "#89ddff",
      "ntp_background": "#292d3e",
      "ntp_text": "#eceff1",
      "popup": "#292d3e",
      "popup_border": "#292d3e",
      "popup_highlight": "#546e7a",
      "popup_text": "#eceff1",
      "sidebar": "#292d3e",
      "sidebar_border": "#292d3e",
      "sidebar_highlight": "#546e7a",
      "sidebar_text": "#eceff1",
      "tab_background_separator": "#222533",
      "tab_selected": "#3b4159",
      "tab_line": "#222533",
      "tab_loading": "#89ddff",
      "tab_shadow": "none",
      "tab_text": "#89ddff",
      "toolbar": "#292d3e",
      "toolbar_field": "#222533",
      "toolbar_field_border_focus": "#89ddff",
      "toolbar_field_text": "#eceff1",
      "toolbar_vertical_separator": "#292d3e",
      "frame": "#292d3e",
      "tab_background_text": "#eceff1",
      "bookmark_text": "#eceff1"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0115ab40-4009-4b19-932a-eff0c5c866b7}"
    }
  }
}