I made the number (5259) very small for that reason (at least; it appears small during the simulation). But I did not want to take it off altogether, as then I would probably forget it when I want to place the repaint in the network in explore mode. Now, I am reminded of the number every time I see it, without be being too obviously present.
But yes; you can always take it off yourself; that's just a few seconds' work in Paint.
The diagonal text? I made that part of the texture in MS Office Excel, and then copied it to paint. That way, you can make the text in any angle you want