public ColorRGBA mult(float scalar) {
        return new ColorRGBA(scalar * r, scalar * g, scalar * b, scalar * a);
    }
Multiplies each r,g,b,a of this <code>ColorRGBA</code> by the given scalar and
returns the result as a new <code>ColorRGBA</code>.
Used as a way of making colors dimmer or brighter.

@param scalar The scalar to multiply by.
@return The new <code>ColorRGBA</code>.  this*scalar
jme3-core/src/main/java/com/jme3/math/ColorRGBA.java