More coloured blocks (such as Concrete & Wool)

Using the idea of the leather armour being dyed in certain way, giving different types of colours which are quite specific. There are so many different variety of colours that would be useful for building. In addition to that idea there should be an item called "Custom dye" and when you hover over it, it should show what kind of colours are mixed into it (Like armour). With this, the custom dye can be used for crafting for things such as wool and concrete since for their recipes they use different types of dye or any block that use the same principle. In addition to the "Custom dye" item, the colours/dyes should be mixed in a crafting table instead of a cauldron as this would make it easier for people to use and craft the new item called "Custom dye". I feel like this could be very much possible to do since the colours already exist on the leather armour.