| Kind | Value | annotation | ||
| enumeration | 1_white | |||
| enumeration | 9_other colour indicate | |||
| enumeration | 8_violet | |||
| enumeration | 7_purple | |||
| enumeration | 6_red | |||
| enumeration | 5_pink | |||
| enumeration | 4_orange | |||
| enumeration | 3_yellow orange | |||
| enumeration | 2_yellow | |||
| enumeration | 0_RHS Colour Chart indicate reference number |