+-DWITH_BREEZE=(ON|OFF)
+ Alternative icon set to Oxygen.
+ By default, WITH_BREEZE is OFF.
+
+-DWITH_BREEZE_DARK=(ON|OFF)
+ Alternative icon set to Oxygen.
+ By default, WITH_BREEZE_DARK is OFF.
+
+-DWITH_WEBENGINE=(ON|OFF)
+ Use WebEngine for showing previews of webpages linked in the chat. Requires
+ the QtWebEngine module to be available, and increases the client's RAM usage
+ by *a lot* if enabled at runtime. Only available for Qt5. The default is ON.
+