Chiming in as a fanatic for TailwindCSS myself.
Before I type this, a disclaimer: Iāve been using Bricks for 2 hours now. Thatās it.
One thing Iām hoping to see in Bricks is a styles config.js file similar to what youād see in Tailwind. In a perfect world, Bricks would use it similar to a VScode Intellisense to offer autocompleting custom classes in the builder. I think that would satisfy the needs of OP (and myself as well) though I canāt complain. Honestly, Bricks is everything that Oxygen/GeneratePress/Astra/Elementor all wanted to be but never were and Iām happy I found it (yes, I know some are themes and others are builders inb4 someone chimes in about that).