| hcl2rgb | Color Conversion |
| lr2na | Plots of Functions over Triangular Domains |
| plot2d.cell | Plots of Functions of Two Discrete Variables |
| plot2d.contour | Plots of Functions of Two Continuous Variables |
| plot2d.tricontour | Plots of Functions over Triangular Domains |
| plot3d.bar | Plots of Functions of Two Discrete Variables |
| plot3d.surf | Plots of Functions of Two Continuous Variables |
| plot3d.surface | Plots of Functions of Two Continuous Variables |
| plot3d.trisurface | Plots of Functions over Triangular Domains |
| rgb2hcl | Color Conversion |
| test.theme | Color Themes |
| use.theme | Color Themes |