Remove mention of hex RGBA as supported color prop
Remove mention of hex RGBA as supported color prop

ptitjano/bokeh,Karel-van-de-Plassche/bokeh,jakirkham/bokeh,phobson/bokeh,justacec/bokeh,ericmjl/bokeh,jakirkham/bokeh,DuCorey/bokeh,timsnyder/bokeh,msarahan/bokeh,aavanian/bokeh,aavanian/bokeh,KasperPRasmussen/bokeh,rs2/bokeh,clairetang6/bokeh,justacec/bokeh,philippjfr/bokeh,KasperPRasmussen/bokeh,jakirkham/bokeh,percyfal/bokeh,dennisobrien/bokeh,clairetang6/bokeh,bokeh/bokeh,mindriot101/bokeh,Karel-van-de-Plassche/bokeh,ptitjano/bokeh,percyfal/bokeh,aiguofer/bokeh,philippjfr/bokeh,aiguofer/bokeh,dennisobrien/bokeh,KasperPRasmussen/bokeh,DuCorey/bokeh,Karel-van-de-Plassche/bokeh,jakirkham/bokeh,aavanian/bokeh,draperjames/bokeh,dennisobrien/bokeh,ericmjl/bokeh,DuCorey/bokeh,schoolie/bokeh,msarahan/bokeh,mindriot101/bokeh,schoolie/bokeh,mindriot101/bokeh,ericmjl/bokeh,azjps/bokeh,rs2/bokeh,phobson/bokeh,azjps/bokeh,rs2/bokeh,DuCorey/bokeh,schoolie/bokeh,phobson/bokeh,phobson/bokeh,draperjames/bokeh,KasperPRasmussen/bokeh,bokeh/bokeh,schoolie/bokeh,aiguofer/bokeh,quasiben/bokeh,Karel-van-de-Plassche/bokeh,bokeh/bokeh,justacec/bokeh,rs2/bokeh,timsnyder/bokeh,DuCorey/bokeh,stonebig/bokeh,ptitjano/bokeh,ptitjano/bokeh,phobson/bokeh,percyfal/bokeh,schoolie/bokeh,draperjames/bokeh,stonebig/bokeh,aiguofer/bokeh,percyfal/bokeh,KasperPRasmussen/bokeh,jakirkham/bokeh,azjps/bokeh,aavanian/bokeh,draperjames/bokeh,draperjames/bokeh,timsnyder/bokeh,timsnyder/bokeh,bokeh/bokeh,mindriot101/bokeh,philippjfr/bokeh,Karel-van-de-Plassche/bokeh,timsnyder/bokeh,stonebig/bokeh,justacec/bokeh,rs2/bokeh,ericmjl/bokeh,azjps/bokeh,aiguofer/bokeh,percyfal/bokeh,philippjfr/bokeh,dennisobrien/bokeh,ptitjano/bokeh,clairetang6/bokeh,aavanian/bokeh,azjps/bokeh,philippjfr/bokeh,quasiben/bokeh,bokeh/bokeh,stonebig/bokeh,clairetang6/bokeh,msarahan/bokeh,dennisobrien/bokeh,ericmjl/bokeh,quasiben/bokeh,msarahan/bokeh