lottie/slot: support custom effect slot overriding #3906
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Make LottieEffect inherit from LottieObject for architectural consistency and enabling Slot overriding.
Removed redundant 'nm' field from LottieEffect, now using the inherited 'id' field from LottieObject.
Renamed property methods each to `getProp` and `propertyById` for backward compatibility with the LottieObject model.
This patch enables slot overriding for custom effects (LottieFxCustom). Allowing Lottie animations to dynamically override effect properties for Custom effect through the slot system, providing runtime customization of visual effects. issue: #3826
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This patch enables slot overriding for custom effects (LottieFxCustom).
Allowing Lottie animations to dynamically override effect properties for Custom effect
through the slot system, providing runtime customization of visual effects.
Sample (default effect slot)
effect-default-slot.json
Result (lottie-web vs ThorVG)
Slot JSON
{ "slider_control": { "p": { "a": 1, "ix": 1, "k": [ { "i": { "x": [ 0.833 ], "y": [ 0.833 ] }, "o": { "x": [ 0.167 ], "y": [ 0.167 ] }, "t": 0, "s": [ 0 ], "e": [ 50 ] }, { "t": 100 } ] } } }issue: #3826