I think I can get the right values.
That PCB seems a bit different, but I think it's just those two 1uF film box cap (I don't know why one white and one grey!). In the schematic and the layout show two electrolytic cap, but I guess film box are ok (or even better?)
So that PCB should be with the schematic. Maybe the pedal have boost volume.
I built an Active Baxandall veroboard layout, and tried to add a mini daughter board with the mid control. It has the same configuration of the 3-band equalizer, bass and treble control works perfectly, while the mid control it's completely useless. I noticed just a muddier sound in the two extreme settings of the mid control.
I afraid to get the same thing with this schematic. It's bit weird.
Do you find the controls work fine as in the demo you linked?
I build pedals