FeatherNotes is a lightweight Qt5 hierarchical notes manager. It is
independent of any desktop environment and has:

* Support for rich text formatting, image embedding and inserting
  editable tables
* Drag-and-drop capability for moving nodes and also for embedding
  images
* A tray icon for quick access on any desktop
* Correct position/size saving and restoring with most window managers
* Compact but complete search and replacement widgets
* The ability to include searchable tags (hidden info on each node)
* Support for optional node icons
* Support for local and remote hyperlinks (bookmarks)
* Text zooming
* Printing and exporting to HTML and PDF
* Password protection
* Auto-saving