Thanks for the feedback! I tried the format filter with no luck. Here's a 700kb Color-Chart Sample mp4, esp. look at the right side of red, the 255 on screen is transform to 230 in PNG. https://drive.google.com/file/d/1qpbngZ441S64QA_ziM2h5O06q5RZrNOC/view?usp=sharing Best Regards