Imports gioui.org/app gioui.org/io/key gioui.org/io/system gioui.org/layout gioui.org/op gioui.org/op/clip gioui.org/unit gonum.org/v1/plot/plotter gonum.org/v1/plot/vg/draw gonum.org/v1/plot/vg/vggio Imports in module “go-hep.org/x/hep” go-hep.org/x/hep/hbook go-hep.org/x/hep/hplot Standard library imports image/color math/rand os strings