(im)possible to find really white tiles on a wall?

[hobbyrv]

I want to put a white tile structure on walls. But when I import that, it becomes very grey, even more than the walls usually already colour a bit grey. And that gives a whole different design, what I don't want. Question: is it possible to find a transparant tile structure, so that I only put the seams on the wall, with remaining the original colour of the wall? Or are there other solutions to this problem?

[Puybaret]

Try to increase light brightness in the 3D modification dialog box.
If you want to show transparent tiles, you could use a transparent texture image on a large thin box that you'll put along the wall.

[hobbyrv]

Thank you. I tried to find transparant tile structures, but didn't succeed. Do you know where to find it?