Pass rcParams to pyplot() while using Plots.jl

If one uses PyPlot.jl separately from Plots.jl, one can change all default settings by editing rcParams dictionary. Is there a way to edit rcParams if one uses PyPlot as a backend for Plots.jl?
May be I can pass rcParams to pyplot() function?

It seems that when one uses PyPlot backend, one can access rcParams as Plots.pyrcparams.