On fabolous you can see transparent blocks like water, stained glass etc. and particles, clouds behind semi-transparent armor stands that are not markers, but when it is a marker armor stand, you cannot see water, stained glass and other transparent things behind it even on fabulous. Relates to
- Switch to fabulous
- Summon an invisible marker armor stand near it using
- Go into spectator mode
Through the armor stand that is not a marker you can see water etc. but through the marker armor stand you cannot.