Bug from https://bitbucket.org/binnie567/binnie-mods/issues/327/genepool-gui-rawdna-and-power-black-out

Original text:

The RawDNA and Power GUI bars go black when the genepool is in use. Hovering mouse cursor over the RawDNA tank renders both back to normal but as soon as you move off the RawDNA tank they go black again.

More problems with GUI. Maybe drop it and use existing forestry GUI classes?

If remove the tank output component, the problem disappears.
I don't know why this happens. I tried to resave (and optimize) the assets. Nothing.

The OpenGL states for drawing fluids, backgrounds, and icons is slightly messed up. I fixed it in the 1.11 branch I think, you can compare the gui drawing code.

I see that there are a lot of OpenGL fixes in 1.11.2.
Unfortunately, I don't understand OpenGL at all...
I try it later.