My personal set of gradient maps for greyscaled sketches and overlays.
!HOW TO USE!
1. Go to Edit at the top left of the CSP window
2. Click Tonal Correction
3. Click Gradient Map
4. Click Wrench icon and click import gradient
For more detailed instructions and info: https://help.clip-studio.com/en-us/manual_en/390_filters/Tonal_Correction_Effects.htm#1364051