Identifies medical pseudo-coloring schemes.
Values:
| MED_PSEUDOCOLOR_OFF | Reset to Grayscale. |
| MED_PSEUDOCOLOR_OIL_FILM | Oil Film. |
| MED_PSEUDOCOLOR_DARK_BLUE_TO_BRIGHT_RED | Dark Blue to Bright Red. |
| MED_PSEUDOCOLOR_GREEN_TO_RED | Green to Red. |
| MED_PSEUDOCOLOR_RED_GREEN_BLUE | Red, Green, Blue. |
| MED_PSEUDOCOLOR_THERMAL | Thermal. |
| MED_PSEUDOCOLOR_BRIGHT_RAINBOW | Bright Rainbow. |