In a Thumb Layout, there is full-featured indicators for both stacks and versions. But, what about for Tabular Layouts?
There is only so much room. Tabular layouts are for mass data representation.
They show only a limited number of icons, icons which manipulate collections etc.
Use a regular thumbnail layout if you want to see all possible icons. Or, if you really must, create a tabular layout with a custom template which displays stack / version information.