I'm sorry to say that this caused my game or computer to have a stroke. I'm sure you will figure it out in which case I'll be happy to re-visit it. I would not discourage others from trying it as my system is old as am I and my computer knowledge is limited. Thanks for letting me try it out. Cheers mate.

how to stop it auto putting itself on toolbar?

should be fixed now. the change in the main mod to fix the bottles not refilling broke the bp for the paint. just had to update the def here to reflect the changes.

The blueprint for the "paint chemicals" needs to be updated. It says it needs "Mineral Spirits", "Calcium Ingots", "N/A" , "Titanium Ingots" and "Niobium Ingots". Seems like the recent changes in the main mod have yet to be transferred to the plugin.