Examine source code of Discord

{
  "manifest_version": 2,
  "name": "Discord inspired Dark-Theme",
  "version": "1.1",
  "description": "A simple colour theme inspired by Discord.",
  "browser_specific_settings": {
    "gecko": {
      "id": "theme-discord@installsh.protonme",
      "strict_min_version": "91.0"
    }
  },
  "theme": {
    "colors": {
      "frame": "#393a41",
      "frame_inactive": "#2B2D31",
      "tab_background_text": "#949BA4",
      "tab_selected": "#5865F2",
      "tab_text": "#FFFFFF",
      "tab_line": "#e358e7",
      "tab_loading": "#e358e7",
      "toolbar": "#2B2D31",
      "toolbar_text": "#FFFFFF",
      "toolbar_top_separator": "#5865F2",
      "toolbar_bottom_separator": "#232428",
      "toolbar_vertical_separator": "#5865F2",
      "toolbar_field": "#1E1F22",
      "toolbar_field_text": "#FFFFFF",
      "toolbar_field_border": "#5865F2",
      "toolbar_field_focus": "#5865F2",
      "toolbar_field_text_focus": "#FFFFFF",
      "toolbar_field_border_focus": "#e358e7",
      "toolbar_field_highlight": "#e358e7",
      "toolbar_field_highlight_text": "#FFFFFF",
      "icons": "#ff73fa",
      "icons_attention": "#e358e7",
      "button_background_hover": "#5865F2",
      "button_background_active": "#e358e7",
      "popup": "#5865F2",
      "popup_text": "#FFFFFF",
      "popup_border": "#5865F2",
      "popup_highlight": "#e358e7",
      "popup_highlight_text": "#FFFFFF",
      "sidebar": "#5865F2",
      "sidebar_text": "#FFFFFF",
      "sidebar_border": "#5865F2",
      "sidebar_highlight": "#e358e7",
      "sidebar_highlight_text": "#000000",
      "ntp_background": "#1E1F22",
      "ntp_text": "#FFFFFF",
      "ntp_card_background": "#2B2D31"
    }
  }
}