> 1) Can you have no background image?
> 2) The Derelict module seems to work for me only if there's Distortion
> or Overdrive first in the effects line... Otherwise it will emit only a
> very low noise...
We have working a lot on the Derelict sources these days, then maybe you get the sources in a bad moment.
Can you update the sources and compile again and confirm if the problem with Derelict still exist?
About ... the background image we add in the settings the possibility to change, for whatever PNG image you want, enable/disable the background image is a good idea, if I have time I will include in the next version.