The way the drawing tools are named attaches them automatically to various buttons. For example, terrain drawing tools are all named "Terrain default, [actual name of tool]" so that they all appear when you click the Terrain default button. So to make the names short enough you would have to use very short names indeed, like "Terrain default, mud", or "Terrain default, sand". Sometimes, though, this isn't possible if you have 32 textures that need uniquely named drawing tools.

You're welcome :)

Yes, thank you very much for the detailed break down :)

Maybe we just don't see the mistakes because we didn't make them?

You're doing really well :)