represents the number of color entries in the color palette.
a new SDL_Palette structure on success or NULL on failure (e.g. if there wasn't enough memory); call SDL_GetError() for more information.
Threadsafety: It is safe to call this function from any thread.
SDL_DestroyPalette SDL_SetPaletteColors SDL_SetSurfacePalette
Create a palette structure with the specified number of color entries.
The palette entries are initialized to white.