hey i used it but i have error "Grid not completly full" can you help me plz ?
(can aswer here or in discord @Sugna#5382
most likely you do not have enough images to fill the grid up (the grid uses a 4x4 which means 16 images, you might have added less)
You can try adding this variable to your Renpy script:
define config.allow_underfull_grids = True