Atheon Mark — Web Highlighter

Highlight and organize text on any webpage with custom colors, reusable styles, shortcuts, and a floating toolbar.

Highlight what matters. Atheon Mark is a lightweight, customizable web highlighter that lets you highlight and organize text on any webpage with custom colors, reusable styles, quick shortcuts, and a floating toolbar. Key features • Custom highlight styles — Choose your own background color, text color, and opacity. • Multiple style profiles — Start with six built-in colors and save up to ten profiles. Drag to reorder them and use Option/Alt + 1–0 for quick selection. • Quick shortcuts — Pin a highlight, erase highlighted text, cycle styles, or clear all highlights. Shortcuts can be customized. • Floating toolbar — Keep your five most-used styles available directly on the webpage, with a full floating panel when you need more controls. • Text height mode — Switch to a tighter highlight that follows the height of the text, or leave it off for the page’s default line-height behavior. • Style management — Add, rename, edit, delete, reorder, save, and reset styles. • Themes and bilingual UI — Choose Soft, Dark, Glass, or Pro, with English and Simplified Chinese interface support. • Reset all settings — Restore the six built-in styles, default shortcuts, and fresh-install preferences at any time. Atheon Mark is designed to stay compact, fast, and out of the way while you read, research, study, or work on the web.