Haiku (BeOS) Theme for Gmail

Make Gmail look and work like Haiku's BeMail: a BeOS-style toolbar, Tracker message list, yellow window tabs and Haiku controls.

Turn Gmail into a native-looking Haiku (BeOS) mail client, modelled on Haiku's BeMail and Beam and on Haiku's interface guidelines. • BeMail toolbar: New, Reply, Reply All, Forward, Archive, Trash, Junk, Unread, Print, Previous and Next, with Haiku's own icons. Each button presses Gmail's own control, so Gmail still does the work. • Yellow window tabs over the message pane and the compose window, with a working close box. • Tracker-style message list: 22px rows, column headers, Haiku status icons and stars. • BeMail compose window: To and Subject labels, the Send row and formatting strip at the top, minimise and zoom boxes on the tab. • Haiku controls throughout: bevelled push buttons, sunken text fields, radio buttons, checkboxes, scrollbars, menus and tab views. • Compact summaries for invitations, bills and orders; a resizable folder panel; a status bar with the unread count and position. • Gmail extras with no BeOS counterpart are hidden: the apps grid, Gemini, Chat and Meet, and the Material ripples. Everything happens in your browser. The extension collects no data, makes no network requests and asks for no permissions beyond running on mail.google.com. Works with Gmail's English interface and default inbox layout. Open source (MIT): https://github.com/ojdorson/haiku-theme-for-gmail Not affiliated with Google or Haiku, Inc. Gmail is a trademark of Google LLC. The icons are Haiku's, used under the MIT License.