In particular the new mechanism for handling extended color palettes is in place,
included renaming the ini keys and saving the color name instead of its index; this means better forward compatibility with palette changes.
Since ini keys are changed, colors will be reset
and therefore tracks are now dragged when a end point is inside a pad, not necessary on the pad position.
However, drag functions still need more cleanup.
* serious code cleanup (remove duplicate code)
* shows (option in 3D preference menu) the copper items (tracks, zones...) in 3D, using 35 microns copper thickness.
However, because there are a lot more3D data to show (roughly 4 times more), this is slower.