Add a muted flag to Keyframe. Muted keys stay in the Timeline and Graph Editor (dimmed, selectable and movable) but evaluation skips them, so the active neighbours interpolate as if they were not there; auto-Bezier and eases use the active neighbours. When every key is muted the property falls back to its static value.\n\nkeys.setMuted {muted} mutes or unmutes the selected keys in one undo step. The Timeline context menu offers Mute/Unmute Keyframes and the Animation menu has Mute Keyframes. Muted keys have no Bezier handles and motion-path points are dimmed.\n\nLottie export omits muted keys (with a warning) because Lottie has no mute state; scripting keeps seeing them in numKeys/key().\n\nTests: keyframe evaluation (linear, auto-Bezier spatial, all muted), serialization and value replacement, engine command + undo, Lottie export.
A shape's painted bounds can be tiny enough (a 1e-305 px rectangle) that
the fit scale overflows to infinity. Non-finite bounds are skipped and a
non-finite scale returns an error before anything is written, instead of
storing infinity in the document.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
layer.transform's fit / fitWidth / fitHeight ops took the layer's size
from render::source_size, which returns (0, 0) for layers without a
source item — shapes and text — so the ops matched nothing and silently
did nothing, for the shortcut, the menu item and the command alike.
When the source size is empty and a fit op runs, the size falls back to
the layer's painted content bounds at the current time, and the anchor
goes to the bounds' centre: content bounds live in layer space, where a
shape is centred on the origin and text sits above its baseline, so
(w/2, h/2) would fill the frame but land off-centre. Reset and the
other ops keep the source size, so their defaults are unchanged.
The regression test asserts what the viewer shows — the painted bounds
mapped to comp space span [0, 0, 640, 360] after fit, and fitWidth
spans the width centred vertically — for a rect shape and a text layer.
Co-Authored-By: GLM-5.3-Flash <noreply@z.ai>
Camille Moine