Demon form cosmetics

I've spent some money on aura effects and other visual skins like helmet attachments and similar cosmetics. The thing is, I only play in demon form - it just tingles my brain and makes me really happy being a flying demon girl lol - but none of the visuals seem to work while in demon form.

I was wondering if this is intended or maybe a bug? Are there any plans to make auras and some simpler attachments visible in demon form in the future?

I really wish at least aura effects, like the ghoul character effect (which looks insanely cool), worked with demon form. Right now it kind of feels like I spent money on skins I can't even see while playing the way I enjoy most.