Hi there!

Just added this mod and got an error during startup.

XML error: Could not find parent node named "AC_StackStyles" for node "ThingStyleDef". Full node: <ThingStyleDef ParentName="AC_StackStyles"><defName>AC_Dwarven_EmptyNeuralStack</defName> [...]

Looking at the files, the error is in ThingStyleDefs.xml, and I assume you need to add a check if AC is active. You did that in StyleCategoryDefs.xml, but it seems that this is not enough.
I deleted the entries in both files and now it seems to work.

Aaand I just checked the 1.6 files and saw that you fixed it there. Didn't think to look there before. :)
It would be sweet if you could fix it in 1.5 as well before you upload a new version.

Many Thanks!