Extensions to animation features (GSoC)
Summary:
New features:
- Keyframing support for layer opacity, content in filter layer, fill layer, transparency mask and filter mask
- Interpolation for opacity keyframes
- Animation curves docker
- Color labels for keyframes
- Filtering by keyframe color for onion skins
- Initial code for animating and interpolating transformation masks (disabled for now)
Ref T1101
Ref T146
Reviewers: Krita, timotheegiet
Reviewed By: Krita, timotheegiet
Subscribers: timotheegiet, woltherav
Maniphest Tasks: T146, T1101
Differential Revision: https://phabricator.kde.org/D2801