Decrease of brightness when adding HTML filter


I’ve noticed that for some reason, when I add any HTML filter the image brightness decreases.
It’s only me? A known bug? Any thoughs?

I’ve also found that:

  • In the app it only happens if I start the app with Gamma > Rec 709, if I start the app with sRGB it does not happen.
  • In the rendering, it happens always T_T even exporting to bmp files