Imports gonum.org/v1/plot/font gonum.org/v1/plot/text gonum.org/v1/plot/vg/vgeps gonum.org/v1/plot/vg/vgimg gonum.org/v1/plot/vg/vgpdf gonum.org/v1/plot/vg/vgsvg gonum.org/v1/plot/vg/vgtex gonum.org/v1/plot/vg/draw gonum.org/v1/plot/font/liberation gonum.org/v1/plot/vg Standard library imports image/color fmt io math os path/filepath strconv strings time runtime/debug