Is it possible to use the grid pattern on a node but also setting a background color to it, say blue?
I want to use something like
\node (b) [fill=red, pattern=grid] {b};
I am aware of the solution here: How to combine fill and pattern in a pgfplot bar plot?, but it does not seem to apply directly to a node. Thanks in advance!

{}). – Claudio Fiandrino Jul 22 '12 at 16:59