Here's the material file. As usual, remove the .txt file extension and save it in your Materials library folder.

The PM:Adjust_Width node controls the width, but I didn't bother to invert it, so value 20 gives a 0.1 width cross, value 10 gives a wider 0.2 width cross, value 5 give 0.4, etc. Just play with it, and you'll see.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)