Thicker grid lines

I’d like to be able to set the line width/weight of the map’s grid. On a busy map, the single pixel dashed line can be hard to see. These screenshots are more visible than my screen due to it being Retina.



I believe you can change the guide color, to something more contrasting to your particular map.
For example, maybe use bright white.

There is such a variety in my tiles, so changing color doesn’t help much. The real issue is that I’m on a Retina display and the grid lines are being drawn as a single pixel, so for users with high res displays, they before barely visible.