Examine source code of Vantagraph Olive

{
  "manifest_version": 2,
  "name": "Vantagraph Olive",
  "description": "Dark olive and violet surfaces lit by a bright green accent.",
  "author": "Miabeyefendi",
  "version": "1.0",
  "icons": {
    "32": "icon.svg"
  },
  "theme": {
    "properties": {
      "color_scheme": "dark",
      "content_color_scheme": "auto"
    },
    "colors": {
      "frame": "#100818",
      "frame_inactive": "#100818",
      "tab_background_text": "#A8B878",
      "tab_text": "#F0EBE0",
      "tab_selected": "#0A1828",
      "tab_line": "#81B040",
      "tab_loading": "#81B040",
      "toolbar": "#131C05",
      "toolbar_text": "#F0EBE0",
      "toolbar_top_separator": "#243408",
      "toolbar_bottom_separator": "#243408",
      "toolbar_vertical_separator": "#243408",
      "toolbar_field": "#0B0610",
      "toolbar_field_text": "#F0EBE0",
      "toolbar_field_border": "#243408",
      "toolbar_field_focus": "#0B0610",
      "toolbar_field_text_focus": "#F0EBE0",
      "toolbar_field_border_focus": "#81B040",
      "toolbar_field_highlight": "#81B040",
      "toolbar_field_highlight_text": "#100818",
      "button_background_hover": "#0A1828",
      "button_background_active": "#5B723A",
      "icons": "#F0EBE0",
      "icons_attention": "#FF1040",
      "popup": "#1E0E2E",
      "popup_text": "#F0EBE0",
      "popup_border": "#243408",
      "popup_highlight": "#81B040",
      "popup_highlight_text": "#100818",
      "sidebar": "#131C05",
      "sidebar_text": "#F0EBE0",
      "sidebar_border": "#243408",
      "sidebar_highlight": "#81B040",
      "sidebar_highlight_text": "#100818",
      "ntp_background": "#100818",
      "ntp_text": "#F0EBE0",
      "ntp_card_background": "#332440"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8d204cad-5c43-411f-968c-5fc62c39f804}"
    }
  }
}