[Tagging] non-trivial color schemes

[Malcolm Herring]

On 18/12/2012 21:16, Frederik Ramm wrote:
> OpenSeaMap have tons of funny tags for colour-coded buoys, and they even
> have an editor plugin for JOSM where you can visually compile a buoy
> layout and have the plugin set the right tags - maybe some of their work
> can be applied here.

Indeed we do! Objects that have variable colour schemes have a pair of 
attribute tags in the form "...:colour=<list of colours>" and 
"...:colour_pattern=<list of patterns>

Examples of pattern values are horizontal(stripes), vertical, diagonal, 
squared, border, etc.