1) Let say I have object and during animation  and I wont to change its color from green to red.
2) How to make a color fade  in time  of  that object ?..

Go to the materials tab and in in material settings you can change the diffuse color, this, as is everything with green letters, will create keyframes, so if you have a sphere that is white at frame 1, and you change the diffuse color to red at frame 60, it will start white and will inmediately start transitioning to a red sphere and will be completely red at frame 60.

@Raxel_67 --- But what about in CrazyTalk Animator?  Is it the same?

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iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
Desktop (homebuilt) - Windows 10, Ryzen 9 3900x CPU, GTX 1080 GPU (8GB), 32GB RAM, Asus X570 Pro motherboard, 2TB SSD, terabytes of disk space, dual  monitors.
Laptop - Windows 10, MSI GS63VR STEALTH-252, 16GB RAM, GTX 1060 (6GB), 256GB SSD and 1TB HDD

Oops, something needs to be done about this in the forums, happens a lot

sorry

I'm laughing, but only because I was a split-second away from making a similar reply when I first saw the post.

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iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
Desktop (homebuilt) - Windows 10, Ryzen 9 3900x CPU, GTX 1080 GPU (8GB), 32GB RAM, Asus X570 Pro motherboard, 2TB SSD, terabytes of disk space, dual  monitors.
Laptop - Windows 10, MSI GS63VR STEALTH-252, 16GB RAM, GTX 1060 (6GB), 256GB SSD and 1TB HDD