Fill

Property	Required?	Description	Default value
fill-color	No	Color of inside of features.	'#808080' (gray)
fill-opacity	No	Opacity of the fill. Valid values are a decimal value between 0 (completely transparent) and 1 (completely opaque).	1
fill-graphic	No	A design or pattern to be used for the fill of the feature. Can either be a mark consisting of a common shape or a URL that points to a graphic. The <graphic_options> should consist of a mapping containing symbols: followed by an external: or mark:, with appropriate parameters as detailed in the Point symbolizer section.	None

The use of fill-graphic allows for the following extra options:

Property	Required?	Description	Default value
x-graphic-margin	No	Used to specify margins (in pixels) around the graphic used in the fill. Possible values are a list of four (top, right, bottom, left), a list of three (top, right and left, bottom), a list of two (top and bottom, right and left), or a single value.	N/A
x-random	No	Activates random distribution of symbols. Possible values are free or grid. free generates a completely random distribution, and grid will generate a regular grid of positions, and only randomize the position of the symbol around the cell centers, providing a more even distribution.	N/A
x-random-tile-size	No	When used with x-random, determines the size of the grid (in pixels) that will contain the randomly distributed symbols.	256
x-random-rotation	No	When used with x-random, activates random symbol rotation. Possible values are none or free.	none
x-random-symbol-count	No	When used tih x-random, determines the number of symbols drawn. Increasing this number will generate a more dense distribution of symbols	16
x-random-seed	No	Determines the "seed" used to generate the random distribution. Changing this value will result in a different symbol distribution.	0

Todo

Add examples using random