Examine source code of Material Palenight

{
  "name": "Material Palenight",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "firefox.png"
    },
    "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": "#292d3e",
      "tab_line": "#292d3e",
      "tab_loading": "#89ddff",
      "tab_text": "#89ddff",
      "toolbar": "#292d3e",
      "toolbar_field": "#292d3e",
      "toolbar_field_border_focus": "#89ddff",
      "toolbar_field_separator": "#292d3e",
      "toolbar_field_text": "#eceff1",
      "toolbar_vertical_separator": "#292d3e",
      "frame": "#292d3e",
      "tab_background_text": "#eceff1",
      "bookmark_text": "#eceff1"
    }
  }
}