#130 styled the menus' items with theme::menu_style through MenuConfig, which egui applies to submenus only. The bar's own titles kept egui's default 12 pt, dimmer button text. MenuBar::style takes the same style, so the titles and their menus now share one size and colour, as in a native menu bar. The #130 test now checks the File title too; without this change it fails at 12 pt.
skylar taylor-barrick
c0959dba17