Thank you for responding and considering enchancing your Color Grading video filter.
Currently, as you know, when I color grade a clip and save the presset, and then recall it elswhere, I really do not know the exact values of RGBs and gains, color wheels are informative up to the point, but not precise.
In the spirit of Shotcut, (and without a need to ‘invent’ new kind of sliders/spinners :)), I enclosed a draft of proposed look for the enchanced filter. Enchanced in a sense that the user will see numericaly the color positions with the precisions that sliders allow.
I hope you will consider to implement it as your time allows.