SkelForm v0.5.2 comes with functional and cosmetic facelift for keyframes, as well as many minor improvements across the editor.

Fixes:

Fixed crash when creating new parent after shuffling bones
Fixed crash from layer width & height issues when importing PSD
Fixed janky calculation with bone rotation via mouse
Fixed physics section of bones being folded along with inverse kinematics
Fixed 'Skip Startup' setting not working
Fixed drawing order issue with keyframe lines
CMD+C and CMD+V now work on MacOS
Copy/Paste internal logic made more consistent

Additions/Changes:

Rotation resets to 0 when adding bone to an IK family
Rotation forced to stay 0 when editing an IK bone
Same-ratio scaling with mouse now additive rather than overriding
Hovering on points now highlights bone in hierarchy panel
Slightly changed inverse kinematics-related bone labels
All clickable bone names on bone panel now highlight it in hierarchy and
renderer
Added hidden toggle to bone panel
All colors moved to their own section in settings
Added 'Default' resetter for User Interface in settings
If armature has warnings, they'll be noted when exporting
Added padding to right side of settings modal, for the scrollbar
Added 'Cancel' button for export
Added header to Miscellaneous section
Timeline editor no longer shows '0s'
Per-second frames now permanently highlighted in timeline editor
Warings modal drop-shadow to make it stand out from right-side panel
Selected bones won't be renamed if re-selected when the right-side panel
doesn't display a bone
'Open after export' removed - exported videos will now always open after
export
Export options won't reset anymore after finishing/cancelling it
Timeline zoom scrolling less sensitive
Removed 'Copy' and 'Paste' buttons from timeline editor

Keyframes Facelift

Keyframes have received a few upgrades:

New Icons

The previous icons, which were pixelated and used black as the base color, have
been replaced with higher-quality icons that now use white as the base color: