Trasparency checker size is doubled

[crawfxrd]

Pixelorama version:

Tested on:

• 0.8.1-stable
• fad41bd

OS/device including version:

Fedora 33

Issue description:

Expected: Checker size uses value specified
Actual behavior: Checker size is twice the set value (e.g. 6 px when set to 3 px)

Steps to reproduce:

• Set checker size to 1
• Set follow canvas movement
• Set follow zoom level
• Zoom in on canvas

[crawfxrd]

Playing around with it more, I have at least 2 more issues with these settings:

• Selecting 'Image > Resize Canvas' and not changing anything causes the scaling of the board to change to some strange value (25 checkers for 8 px)

• Adding a new layer on a non-square canvas stretches the transparency checker board

[IsotoxalDev]

transaprency checker stretching while exporting