| Kind | Value | annotation | ||
| enumeration | -1_RHS Colour Chart indicate reference number | |||
| enumeration | 8_purple | |||
| enumeration | 7_brown | |||
| enumeration | 6_orange brown | |||
| enumeration | 5_orange | |||
| enumeration | 4_green | |||
| enumeration | 3_yellow green | |||
| enumeration | 2_yellow | |||
| enumeration | 1_yellowish white |