On the Fly Battle Map help

Hello,

I'm not asking for how to use otfbm.io, but I have a map that I can't seem to edit the way I want. It works, but a square is supposed to be 10 feet and I'd like to scale up so you could fit 4 tokens in a single square. It works well when I put the scale to @c35, but if I adjust it so 1 square becomes 5 feet instead of 10, the lines never line up again. Anyone really good at that? Here's the map.

https://otfbm.io/36x46/@c35?bg=https://paratime.ca/images/fantasy/dungeon-a-263-wh-b.jpg

Download and resize the image to make it larger.

Here I've made the image 240% larger and reuploaded it.

[map]
https://otfbm.io/72x92/@c42
?bg=https://i.imgur.com/MnJxONZ.jpg
[/map]

At 240% it makes each cell 42 pixels, which means you can use images for tokens (I think the cut off is 40 pixels)

Thank you, I'll give it at try when I get home

To confirm, when you say to make the image 240% larger, what are you doing to make it larger?

Opening it a paint program and resizing it - giving it more pixels.