In Skyvector, Foreflight and Aviation Weather Center the following colors are used for flight conditions:
- LIFR = Magenta
- IFR = Red
- MVFR = Blue
- VFR = Green
In most contexts, red is used as the color for the most caution/hazard, but LIFR has lower weather conditions than IFR. Why use pink for LIFR?
Somebody may answer: because LIFR is a subcategory of IFR (or MVFR is a subcategory of VFR). Are there any other IFR subcategories (other than LIFR) to justify branching off that category? It seems like a creating a subcategory branch should have at least two categories.