Lights on isometric maps use the diagonal distance

Hi :)

I am aware of that lights and vision are not drawn isometrically for isometric maps but it would be useful if the lights radial distance (e.g. 40ft. for torch etc.) would be measured along the "x-" or "y-axis" of such a grid. Right now it uses these axes, but w.r.t. the monitor and not of the grid; i.e., they are measured along the diagonal of the isometric grid. For example a 15ft. shines over 3 diagonals, making radius 5ft. larger than it should be :)

The distance arrows for example already do it correctly (up to the problem with larger tokens), so that I hope that the code for the lights could just follow a similar code

Right now, I am adjusting all the radial numbers to proper numbers, accepting that the "radius" has a different geometric meaning right now. But this also means I have to revert these numbers every time I use a different kind of map again :)

I hope it is clear what I mean, I tried to formulate it in words, but if images help, then I can send some :D

Best wishes

Kelrugem