Examine source code of Midnight Blue Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Midnight Blue Theme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(15, 15, 66)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(25, 25, 112)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(55, 55, 98)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(55, 55, 98)",
      "popup": "rgb(55, 55, 98)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(87, 87, 123)",
      "button_background_hover": "rgb(55, 55, 98)",
      "frame_inactive": "rgb(64, 64, 136)",
      "ntp_background": "rgb(15, 15, 66)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(55, 55, 98)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(55, 55, 98)",
      "sidebar_border": "rgb(55, 55, 98)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(15, 15, 66)",
      "toolbar_bottom_separator": "rgb(55, 55, 98)",
      "toolbar_field_border_focus": "rgb(108, 108, 151)",
      "toolbar_field_border": "rgb(87, 87, 123)",
      "toolbar_field_focus": "rgb(55, 55, 98)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(108, 108, 151)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(15, 15, 66)",
      "tab_loading": "rgb(55, 55, 98)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{32894d29-cd81-45a5-b4f3-a080cba09b73}"
    }
  }
}