Leo is an IDE, outliner and PIM, as described here.
The highlights of Leo 5.7.1
- Improved support for themes, including the open-theme-file command.
- Added --theme= command-line option.
- Added @string theme-name setting.
- Leo warns if stylesheets contain undefined @-constants.
- Replaced 5 vs-* commands by corresponding eval* commands.
- Support @file x.md using html sentinels.
- Allow @path in @ nodes, and optionally generate same in recursive imports.
- Improved menus.
- The usual minor bug fixes.