Examine source code of n(d).dark.fresh

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "nd.dark.fresh@com",
      "strict_min_version": "89.0"
    }
  },
  "name": "n(d).dark.fresh",
  "version": "1.0",
  "description": "A dark fresh theme by neuro(drive).pro() for Firefox",
  "icons": {
    "32": "icon.png"
  },
  "theme": {
    "colors": {
      "frame": "#19232c",
      "frame_inactive": "#262b2e",
      "tab_text": "#d1d1d1",
      "tab_line": "rgba(56, 113, 163, 0.4)",
      "tab_loading": "#296097",
      "tab_selected": "#243341",
      "tab_background_text": "#d1d1d1",
      "tab_background_separator": "#FF0000",
      "icons": "#599ad3",
      "icons_attention": "#FF0000",
      "toolbar": "rgba(38, 54, 68, 0.9)",
      "toolbar_top_separator": "rgba(38, 54, 68, 0.6)",
      "toolbar_bottom_separator": "rgba(38, 54, 68, 0.9)",
      "toolbar_vertical_separator": "rgba(38, 54, 68, 0.6)",
      "toolbar_field": "#2f4152",
      "toolbar_field_text": "#d1d1d1",
      "toolbar_field_border": "#2f4152",
      "toolbar_field_separator": "#FF0000",
      "toolbar_field_focus": "#2f4152",
      "toolbar_field_border_focus": "rgba(56, 113, 163, 0.4)",
      "toolbar_field_highlight": "#fff",
      "toolbar_field_highlight_text": "#d1d1d1",
      "button_background_hover": "rgba(89, 154, 211, 0.3)",
      "button_background_active": "rgba(89, 154, 211, 0.3)",
      "bookmark_text": "#d1d1d1",
      "popup": "#2f4152",
      "popup_text": "#d1d1d1",
      "popup_border": "rgba(56, 113, 163, 0.6)",
      "popup_highlight": "#296097",
      "popup_highlight_text": "#d1d1d1",
      "sidebar": "#2f4152",
      "sidebar_text": "#d1d1d1",
      "sidebar_border": "#2f4152",
      "sidebar_highlight": "#599ad3",
      "sidebar_highlight_text": "#d1d1d1",
      "ntp_text": "#d1d1d1",
      "ntp_background": "#2f4152"
    },
    "images": {
      "theme_frame": "header.png"
    }
  }
}