System theme.
Defined in <SDL3/SDL_video.h>
typedef enum SDL_SystemTheme
{/**< Unknown system theme */
SDL_SYSTEM_THEME_UNKNOWN, /**< Light colored system theme */
SDL_SYSTEM_THEME_LIGHT, /**< Dark colored system theme */
SDL_SYSTEM_THEME_DARK } SDL_SystemTheme;
This enum is available since SDL 3.1.3.