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[Dan64]

Wow! you changed a lot the GUI. It's very nice and much better than the previous version.

I found few bugs. 

The custom parameters are properly applied with the only exception of Combine Method that is not switching to "DDColor only" when necessary (see pictures)






Then the parameter ColorModel is propagated properly in the custom section, but is not added to HAVC_main function call (see picture)



Thanks for the GUI upgrade, I like it a lot 
Dan

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Found another bug when is selected the "custom" preset (see picture)