By Texture I mean Paper texture / grain, Canvas texture and all other grayscale textures that can also be used for Overlays, like the Watercolour Paper texture in my painting here, and Brushes textures.
By Patterns I mean seamless colour pictures for wallpapers, clothing and such. To be used in the painting like this.

This function is in ArtRage, Photoshop, Painter, but the best in ClipStudio with its scalable, rotatable, masked Pattern Fill. I like that. In Paintstorm Studio.
