Hello and sorry for the late reply due to xmas vacation.
The step and linear styles were removed due to the new runtime debugging visualization that has been added recently. It was a bit of a mess to have to manage three different styles since each one required a slightly different piece of code for the runtime debuging visualization to work properly, especially for the stepped style. I could re-add the linear style if that is the one you miss the most, but I am not sure about re-adding the stepped style right now. :/
Gavalakis
