Current pf is good but only if character is small. When it's huge (e.g. my mechs) pf tell him to go e.g. 1 meter when it's high is 3 what looks quite strange. And - what's worse - if squares are little and chrs big they go to close to obstacles. I can make not moveable further from obstacles but then it's to make chr go in place, where pf doesn't work (start pos is on not moveable place).

you can set pathfinding map with additional 1 pixel margin - surround all your red pixels with additional 1