Making a chart smaller trims stitches off the right and bottom.
Screen colours are approximate — they come from published conversion tables, not measured floss, and no screen shows thread truthfully. Trust the numbers, and check the real skein before buying.
Your work is saved on this device already. Turning sync on keeps your phone and tablet in step: a code links them together, and only devices with that code can reach your data.
Type the code from your other device to join it.
Type this code into your other device to link it. Anyone with the code can read and change your work, so treat it like a password — and keep a copy somewhere, because it is the only way back to your data if you lose both devices.
This device and your other one were both edited since they last spoke. Pick which to keep — the other one will be replaced. If you are unsure, cancel by keeping this device, then export a backup from Settings before trying again.