Detail terrain brushes that work in rooms

Brushes for adding 2D textures for floor tiles or outside, perhaps even on object surfaces. This could help in masking the repetitive patterns of some floor tiles or just help add some extra detail into the environment.

This would also help the areas feel either more lived in or abandoned. Being able to change the transparency of these textures would also help a lot.

These could include the following and much more:

• Water, creating puddles of still water, and with increased transparency it could make the floors feel moist.
• Dirt (sand, gravel, etc.)
• Dust
• Blood splatters (or just dragging marks which color you can change to resemble blood or just scrathes on the ground).
• Foot prints (different types for humanoids and animals) and wheel tracks.
• Leaves
• Mud
• Bones
• Snow
• Frost
• Berries
• Shadows
• Sawdust

And the list goes on. The point is that it could be a versatile tool, expecially if you could do it on top of objects (for dusty abandoned houses).