SUGGESTION: Finishes for Painting
At the moment, we can apply paint to blocks, and I like that.
But we can go a step further to customization: adding "finishes" to painted blocks.
Scroolbar to minimize or maximize METALIC.
Scrollbar to minimize or maximize GLOSS.
Scrollbar to minimize or maximize REFLECTION.
Or, instead of various scrollbars, one circle with one of these attributes on each side, and the player moves a little dot inside the circle closer towards the one or other attributes or somewhere in between.
i am sure, many players dream of mirror-alike ships, or flat green military bases, or purple glossy cars!