Examine source code of Material 3 Purple Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Material 3 Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(229, 180, 255, 0.1)",
      "toolbar_text": "rgb(203, 196, 201)",
      "frame": "rgb(29, 27, 30)",
      "tab_background_text": "rgb(232, 225, 229)",
      "toolbar_field": "rgb(75, 68, 77)",
      "toolbar_field_text": "rgb(205, 195, 205)",
      "tab_line": "rgba(229, 180, 255, 0)",
      "popup": "rgb(79, 66, 86)",
      "popup_text": "rgb(239, 220, 245)",
      "button_background_active": "rgba(229, 180, 255, 0.12)",
      "button_background_hover": "rgba(229, 180, 255, 0.08)",
      "frame_inactive": "rgba(232, 225, 229, 0.12)",
      "icons_attention": "rgb(139, 205, 255)",
      "icons": "rgb(229, 180, 255)",
      "ntp_background": "rgb(106, 28, 154)",
      "ntp_text": "rgb(245, 217, 255)",
      "popup_border": "rgb(151, 142, 152)",
      "popup_highlight_text": "rgb(245, 217, 255)",
      "popup_highlight": "rgb(106, 25, 154)",
      "sidebar_border": "rgb(151, 142, 152)",
      "sidebar_highlight_text": "rgb(245, 217, 255)",
      "sidebar_highlight": "rgb(106, 25, 154)",
      "sidebar_text": "rgb(239, 220, 245)",
      "sidebar": "rgb(79, 66, 86)",
      "tab_loading": "rgb(229, 180, 255)",
      "tab_selected": "rgb(106, 28, 154)",
      "tab_text": "rgb(245, 217, 255)",
      "toolbar_field_highlight_text": "rgb(56, 44, 63)",
      "toolbar_field_highlight": "rgb(211, 193, 217)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{272fb0ab-5a0d-4af3-9e24-261f198fcbd9}"
    }
  }
}