ContourStyle

is an option for contour plots that specifies the style in which contour lines or surfaces should be drawn.

Details

ContourStyle->g specifies that a graphics directive g should be used to draw all contour lines or surfaces.
ContourStyle->{g₁,g₂,…} specifies that successive directives g_i should be used to draw successive contours.
If equations are given as input to ContourPlot or ContourPlot3D, the successive directives in ContourStyle->{g₁,g₂,…} are used cyclically to draw contours for the successive equations.
The directives that can be given include:

	Dashing[{w₁,…}]	dashing specification
	Directive[g₁,g₂,…]	composite graphics directive
	GrayLevel[i]	intensity
	Hue[h]	hue
	Opacity[a]	opacity
	Red, Blue, etc.	named colors
	RGBColor[r,g,b]	RGB color
	Thickness[w]	line thickness

For individual g_i, a list of directives is equivalent to Directive[…]. For a single g, a list of directives must be given as {list}.
ContourStyle->None specifies that no explicit contour lines or surfaces should be drawn. Contour shading and meshes are not affected.

Contour lines are partially transparent by default:

Use dashed contour lines:

Show only the regions between contours, but not the actual contours:

Use partially transparent contour surfaces in three dimensions:

Give an explicit list of styles for contours:

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