MeshStyle is an option for Plot3D, DensityPlot and related functions which specifies how mesh lines should be rendered.
MeshStyle can be set to a list of graphics directives including Dashing, Thickness, GrayLevel, Hue and RGBColor.
See Section 2.10.3 and Section 2.10.11.
See also: Mesh, AxesStyle, Prolog, Epilog, DisplayFunction.
New in Version 2.