Plugins allow for customization of UBA.  There are several types of UBA plugins:
* config plugins - configures settings during execution (colors)
* context plugins - accessible through right-click in Bible or Study window
* event plugins - triggered during system events
* language plugins - custom language support (Bible abbreviations)
* layout plugins - custom menu layouts
* menu plugins - accessible in top main menu
* startup plugins - executed on startup
* shutdown plugins - executed on exit

Read https://github.com/eliranwong/UniqueBible/wiki/UBA-Plugins for more information.
