I have a great idea though...
"Diagonal Stripes Painter....:
When painted to a block, it will display diagonally instead of horizontal or vertical.
My suggestion is still "minecrafty" because the diagonal paint will act like a normal block.
Just like stripes paint, only with the word diagonal attached to it.
"
Still wondering when would you release 1.7.10 of your roadworks mod. Honestly, I've been waiting for years, hehe.
I am not adding Diagonal stripes, because I do not see the need for those.
And just a sidenote, but the 1.7.2 version works just fine on 1.7.10. (This goes for both LATL and RW)