Function takes the name of a color and converts it into the rgb space. Parameter "alpha" allows to specify the transparency within [0,1], 0 meaning completey transparent and 1 meaning completey opaque. If an RGB-code is provided and alpha != 1, the RGB-code of the transparency adapted color will be returned.
(character) name of the color to be converted/transformed into RGB-space (code). Only those colors can be used which are part of the set returned by function colors(). Defaults to "black".
(numeric) value specifying the transparency to be used, 0 = completely transparent, 1 = opaque.
Andre Schuetzenmeister [email protected]
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