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docs/lib2-px_sphere.md

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+# px_sphere
+
+Returns points that can be used to draw a pixel-style sphere.
+
+**Since:** 2.0
+
+## Parameters
+
+- `radius` : The radius of the sphere. The value must be an integer.
+- `filled` : Default to `false`. Set it `true` if you want a filled sphere.
+- `thickness`: Default to 1. The thickness when `filled` is `false`. The value must be an integer.
+
+## Examples
+
+	include <pixel/px_sphere.scad>;
+
+	for(pt = px_sphere(10)) {
+		translate(pt)
+			cube(1, center = true);
+	}
+
+![px_sphere](images/lib2-px_sphere-1.JPG)