Examine source code of Claude Plum Light

{
  "manifest_version": 2,
  "name": "Claude Plum Light",
  "version": "1.0.0",
  "description": "Unofficial Firefox theme in the colours of Anthropic's Claude, not affiliated with or endorsed by Anthropic.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{c8a2e6f1-5b3d-4e7a-8f9c-1d2e3f4a5b6c}"
    }
  },
  "theme": {
    "colors": {
      "frame": "#e8e6dc",
      "frame_inactive": "#e8e6dc",
      "tab_background_text": "#30302e",
      "tab_selected": "#6e68b2",
      "tab_text": "#faf9f5",
      "tab_line": "#dedcd1",
      "tab_loading": "#827dbd",
      "toolbar": "#f0eee6",
      "toolbar_text": "#30302e",
      "bookmark_text": "#30302e",
      "toolbar_bottom_separator": "#827dbd",
      "toolbar_top_separator": "#dedcd1",
      "toolbar_vertical_separator": "#dedcd1",
      "toolbar_field": "#faf9f5",
      "toolbar_field_text": "#30302e",
      "toolbar_field_border": "#d1cfc5",
      "toolbar_field_focus": "#faf9f5",
      "toolbar_field_text_focus": "#30302e",
      "toolbar_field_border_focus": "#6e68b2",
      "toolbar_field_highlight": "#827dbd40",
      "toolbar_field_highlight_text": "#30302e",
      "popup": "#e8e6dc",
      "popup_text": "#30302e",
      "popup_border": "#dedcd1",
      "popup_highlight": "#827dbd40",
      "popup_highlight_text": "#30302e",
      "sidebar": "#f0eee6",
      "sidebar_text": "#30302e",
      "sidebar_border": "#dedcd1",
      "sidebar_highlight": "#827dbd40",
      "sidebar_highlight_text": "#30302e",
      "ntp_background": "#f0eee6",
      "ntp_text": "#30302e",
      "ntp_card_background": "#faf9f5",
      "icons": "#5b5a55",
      "icons_attention": "#827dbd",
      "button_background_hover": "#827dbd26",
      "button_background_active": "#827dbd40"
    },
    "properties": {
      "color_scheme": "system"
    }
  }
}