" color role [like role] [attr ...] color [on color]
  color bold               Black
  color emphasized         Blue4
  color italic             Green4
  color underlined         Red4
  color fixed              Yellow4
  color cursor             Orangered
  color tool               Blue4     on Gray75
  color scrollbar          Yellow4
  color normal             Gray15    on Gray85
  color selection                    on LightYellow
  color hlsearch                     on DarkSeaGreen1
  color lnum               Gray50
  color hexheading         Gray50
  color comment    italic  Green4
  color string             Yellow4
  color char               Orange3
  color regexp             Red3
  color regsub             Red1
  color number             Blue4
  color keyword    bold    Black
  color other              Gray15
  color function           Red4
  color variable           Gray15
  color prep       bold    Blue4
  color prepquote          Yellow4
  color graphic            Gray50
  color hlobject1                     on Gray88
  color hlobject2                     on Gray91
  color hlobject3                     on Gray94
  color hlobject4                     on Gray97
  color spell        bold             on Gold
  color guide                #f0ffc0
  color fold                          on Yellow2
  color parenthesis          Blue3
  color docmarkup    bold    Red4     on honeydew2
  color docindent            Blue4    on honeydew2
  color doc                  Black    on honeydew2
  color oldtext              Red4
  color newtext              Green4
  color changedtext          Blue4
  color changed                       on yellow