UPDATE:
I updated Anomalies again this afternoon. There was a small issue where flowers would not rotate symmetrically when symmetry was set to 3. This should be fixed now.
ORIGINAL POST:
I updated he Options menu to allow you to lock and unlock the shader effects. What this means is that they may be "randomized" like other parameters of the anomalies. If you are installing Anomalies for the first time, they should appear as locked by default (different from other parameters) as I felt that these shaders are not parameters of an anomaly, but rather parameters of the game window.
By keeping them locked, you can manually set your shader preferences. However, when you unlock them, by unclicking the small round toggle next to the slider in the options menu, you will allow the randomize button to randomize these shader effects.
I also included the old backgrounds and sounds in this latest build. This allows you to switch back and forth between the old style and the "Space & Sounds" DLC content by turning that package on or off.
If you have no idea what any of this means, no worries, just press "R" :)