I love this concept! I really enjoyed Gone Home and A Normal Lost Phone so they is very up my alley and I look forward to playing the finished project. Sorry to hear about your back, I hope you feel better soon. For the grid spacing you can use nulls to insert a blank space of a certain size, like so : null width 20 height 20.
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Aaaah, thank you so much! I'd forgotten about Normal Lost Phone, but it was such an interesting concept. And thank you-- honestly I've been bedbound for a few days now, it's kinda knocked me out of the jam-- but I'm doin' what I can, hehe.
also thank you sooooo much for telling me about nulls! I was honestly puzzling over how to how to wrangle the grid, not half because it's tough to visualise in Ren'py-- this helps heaps! <3