Maze

This is a 3x2cm patch of texture that has appeared in the gloss paint on the top of my chest of drawers. There's another patch at one corner. I've only just noticed it. I'm fairly sure it wasn't there from the beginning, but I don't know when it has since appeared and I have no idea what's created it.

It's all green - it doesn't look as though the paint has worn away there. Besides which it wasn't patterned underneath, it was just a different colour.

It's been puzzling me.