system.js

module.exports = {
  bg: String,
  backgroundColor: String,
  borderColor: String,
  color: String,

  borderRadius: Number,
  borderWidth: Number,

  f: [Number, Array],
  fontSize: [Number, Array],

  m: [Number, Array],
  mt: [Number, Array],
  mr: [Number, Array],
  ml: [Number, Array],
  mb: [Number, Array],
  margin: [Number, Array],
  marginTop: [Number, Array],
  marginRight: [Number, Array],
  marginLeft: [Number, Array],
  marginBottom: [Number, Array],
  p: [Number, Array],
  pt: [Number, Array],
  pr: [Number, Array],
  pl: [Number, Array],
  pb: [Number, Array],
  padding: [Number, Array],
  paddingTop: [Number, Array],
  paddingRight: [Number, Array],
  paddingLeft: [Number, Array],
  paddingBottom: [Number, Array],

  width: [String, Number, Array],
  w: [String, Number, Array],

  boxShadow: [String, Number],

  fontWeight: [String, Number],

  letterSpacing: Number,
  lineHeight: Number,

  flex: [String, Array],
  align: [String, Array],
  justify: [String, Array],
  wrap: [String, Array],
  flexDirection: [String, Array],
  alignSelf: [String, Array]
}