GaugeStyle

is an option for gauge functions that specifies styles in which the markers are to be drawn.

Details

GaugeStyle->g specifies that a graphics directive g should be used to draw all the marker objects in a plot.
GaugeStyle->{g₁,g₂,…} specifies that successive directives g_i should be used cyclically for successive marker objects.
The directives that can be given include:

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

GaugeStyle can apply to points, lines, and surfaces in the objects specified as markers.
GaugeStyle->None specifies that the marker in a gauge should not be drawn.
GaugeStyle->{g_below,g_above} specifies that directive g_below should be used to draw cumulative markers below the marker value and g_above above.
GaugeStyle->scheme generates styles from ColorData[scheme,…].
For cumulative markers, the setting GaugeStyle->g will be interpreted as {g,None} and not draw any markers above the marker value.

Examples

AngularGauge and related functions will automatically style multiple gauge markers:

Explicitly style different markers:

Specify different styles for different markers:

Use built-in colors to style the markers:

Explicitly style the region below and above the marker value:

Add specularity to a 3D object:

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