I enjoy using Sketchbook Pro, but I have a couple of additional mode setting I have seen and/or used in other painting programs. The "difference," "subtract," and "divide" give great results.(Can be used as a pen setting or layer setting).
I was very surprised to see there was no pen for the "dodge" or "burn" effect. You can use the "dodge" or "burn" as a mode choice presently, but for certain pens, the pen TYPE must be set to standard, which takes away from the pen characteristics when set to standard and not the pens default.
Hope you can agree, but its only a wish list. Thanks for reading.