Laf-widget project provide support for and base set of additional behaviour and widgets in look-and-feels libraries.

the list of currently provided widgets:
* auto-completion (model-based / free-text) on editable combo boxes.
* hover preview of minimized internal frames on desktop icons.
* menu search panel on menu bars.
* hover preview of tab in tabbed panes.
* overview dialog on tabbed panes with optional periodic refresh.
* tab paging on tabbed panes.
* password strength checker on password fields.
* lock border on non-editable text components and model editable combobox.
* select all text in text component on focus gain.
* context menu on text components with edit actions (copy / paste / cut ...).
* enhanced drag-and-drop support for trees.
* scroll pane selector.
* selecting / deselecting in text components on escape key press.
laf-widget is used by substance look-and-feel since 3.0