UI: Onion skin for annotate
Description of feature
Added onion skin for annotate tool.
How to test it
Checklist
Please check if your MR fulfills the following requirements:
-
Unit tests have been added, if possible -
Documentation has been updated -
Build was run locally and any changes were pushed -
Lint has passed locally without error -
CHANGELOG.md has been updated
FYI: @awesome_dev_too
Edited by Félix David