When I open my CR3 files (Canon RP) in RawTherapee the colors look muted and odd. For comparison LR and CaptureOne show awesome fresh nice colors right after the import.
I’m guessing there’s some magic combination of settings to get colors to the LR/C1 levels.
Where should I look?
You can apply LR’s (or Adobe Camera Raw’s) .dcp camera profiles or Capture One’s .icm profiles (under X:\Capture One\Color Profiles\DSLR) to your images by going to RT’s Color tab - ICM - Input Profile - Custom.
Also you can apply a HaldCLUT (read Film Simulation - RawPedia), or use Auto-matched tonecurve, or adjust the color of the images yourself to get more vibrant color.