substitute(prop, calculated, declared, important=false)
  if important
    {prop} calculated !important
    {prop} declared !important
  else
    {prop} calculated
    {prop} declared

text(calculated, declared, important=false)
  substitute('color', calculated, declared, important)

bg(calculated, declared, important=false)
  substitute('background', calculated, declared, important)

bgColor(calculated, declared, important=false)
  substitute('background-color', calculated, declared, important)

outlineColor(calculated, declared, important=false)
  substitute('outline-color', calculated, declared, important)

borderColor(calculated, declared, important=false)
  substitute('border-color', calculated, declared, important)

borderTopColor(calculated, declared, important=false)
  substitute('border-top-color', calculated, declared, important)

borderRightColor(calculated, declared, important=false)
  substitute('border-right-color', calculated, declared, important)

borderBottomColor(calculated, declared, important=false)
  substitute('border-bottom-color', calculated, declared, important)

borderLeftColor(calculated, declared, important=false)
  substitute('border-left-color', calculated, declared, important)