This effect allows you to blur an image or any part. Blur intensity
is changed with the use of sliders, the range of change is from 0 % to 100 %.
If the flag Lock alpha is enabled the
transparency mask doesn't vary, i.e. the transparent points
having opaque neighbours remain transparent.
The effect is applied to the image as you move the slider and
you can see the effect in the
edit area and panel of properties
of the object. Press Apply button to make your changes permanent.