Paint with a solid color
Fills the canvas with solid paint. The parameter is
either a color mask or name of a common color. True-color mask defines
luminosities of red, green and blue color components and has syntax
0xRRGGBB.
Remarks
Common colors are: white, light-gray, gray, dark-gray, black, red,
pink, orange, yellow, green, magenta, cyan and blue. They may be specified literally instead of codes.
In addition, the argument number mustn't be strictly hexadecimal. For example colors codes
0xFFFF00 and 16646400 are both equivalents of yellow.
Example
Color Yellow
Color 0xFFFF00 # also yellow
Color 16646400 # the same yellow