Just not a big fan of triangle markers 
Is there a way to change the :auto order for markers?
// this occurs when you need to do hacky stuff to get a plot to work
(most recently, to make colored scatters work with PGFPlots, but I’ve ran into this before)
edit: related to this, can you make group= set the item in the default order?
like if i have 4 groups, and the first one is missing in a few plots, can i have those ones skip circles and go directly to squares?