This is not a bug report. The issue is a complete lack of in-game guidance.
Could you please provide official instructions or a basic tutorial on the intended way to use the new system? Specifically:
How does one obtain Solid Dye? The Dye Bucket (with liquid dye) has no recipe in JEI and cannot be used in a crafting table with common items like clay.
How do you color the Paint Roller? Shift-clicking or right-clicking the roller on a filled Dye Bucket has no effect.
There are no recipes in JEI and no official wiki, making it impossible for new players to understand the core mechanics. Any guidance would be greatly appreciated.