What is d: IsOptimized in a Blend expression?

Just curious what d: IsOptimized is in a Blend expression?

Although I know that d: is a namespace for development-time attributes, does anyone know that d: IsOptimized is actually? Is there anywhere that these Blend-specific attributes are documented?

This is not in development-time attributes that are supported (and documented) by Visual Studio: http://msdn.microsoft.com/en-us/library/ff602277(VS.95).aspx

Any ideas?

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When an Expression blend optimizes certain animations (changing individual keyframes to a smaller From-To animation), this marker is left behind to give Blend hints. Optimization is converted back to a keyframe for editing purposes when Blend loads it.

Sorry, I don’t know where they are documented.

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Source: https://habr.com/ru/post/1315691/


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