try to quieten logs with spurious css warnings
<logger name="com.github.sarxos.webcam.Webcam" level="OFF"/>
<logger name="com.github.sarxos.webcam.ds.cgt.WebcamOpenTask" level="OFF"/>
<logger name="com.github.sarxos.webcam.ds.cgt.WebcamCloseTask" level="OFF"/>
+ <logger name="javafx.scene.CssStyleHelper" level="OFF"/>
<define name="appDir" class="com.sparrowwallet.drongo.PropertyDefiner">
<application>sparrow</application>
