Blur

You can apply blur effect to widgets.

Overall blur

1. Select widget

2. Open Style Inspector

3. Set blur in Blur size field

Blur mask

Blur widget by alpha channel of image, so opaque areas are blurred, transparent areas are unblurred, and semi transparent areas appear in various levels of blur.

To add blur mask:

1. Select widget

2. Open Style Inspector

3. Click Blur mask and select image file