Examine source code of Material 3

{
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "material3-theme@afnankhan",
      "strict_min_version": "89.0"
    }
  },
  "name": "Material 3",
  "version": "2026.7.27",
  "description": "Material 3 Theme",
  "theme": {
    "colors": {
      "frame": "#141218",
      "frame_inactive": "#141218",
      "tab_text": "#E8DEF8",
      "tab_line": "rgba(0, 0, 0, 0)",
      "tab_loading": "#D0BCFF",
      "tab_selected": "#4A4458",
      "tab_background_text": "#E6E0E9",
      "tab_background_separator": "#141218",
      "toolbar": "#211F26",
      "toolbar_top_separator": "#141218",
      "toolbar_bottom_separator": "#141218",
      "toolbar_vertical_separator": "#141218",
      "icons": "#E6E0E9",
      "bookmark_text": "#E6E0E9",
      "button_background_hover": "#4A4458",
      "button_background_active": "#6750A4",
      "toolbar_field": "#36343B",
      "toolbar_field_focus": "#36343B",
      "toolbar_field_border_focus": "#D0BCFF",
      "toolbar_field_text": "#E6E0E9",
      "toolbar_field_highlight": "#4F378B",
      "toolbar_field_highlight_text": "#EADDFF",
      "toolbar_field_separator": "#141218",
      "icons_attention": "#D0BCFF",
      "popup": "#2B2930",
      "popup_text": "#E6E0E9",
      "popup_border": "#2B2930",
      "popup_highlight": "#4A4458",
      "popup_highlight_text": "#E8DEF8",
      "sidebar": "#211F26",
      "sidebar_text": "#E6E0E9",
      "sidebar_border": "#141218",
      "sidebar_highlight": "#4A4458",
      "sidebar_highlight_text": "#E8DEF8",
      "ntp_text": "#E6E0E9",
      "ntp_background": "#211F26"
    }
  }
}