Option to Always Show Gridlines

[NeoTurtle]

I don't know if it's just me, but I often like to see gridlines when playing. It would be nice to have an option to always display them. I currently often have the mine or dump tool selected just so I can see gridlines.

[Keranik]

I'll see if this can be added to the Tweaks mod, but the game is constantly toggling the states of the grid lines and it may be difficult to keep them locked in, however I will definitely investigate if this is possible!