mlterm3 definition should support 256 colors

[Yuri D'Elia]

Hi everyone. The current definition for mlterm3, which should in theory
target mlterm 3.x, is a bit confusing. In fact, the multiple available
definitions are a bit unclear in scope.

It seems that mlterm3 and mlterm-256color are identical, with the
exception of color support and ccc.

Can somebody confirm that?

Shouldn't these two definitions should be aliased, taking
mlterm-256color as the current version for mlterm3? mlterm 3.x of course
has support for 256 colors.

I'm not sure what mlterm-direct is targeting. I assume also mlterm3,
since the definition is currently identical to mlterm3 except for
colors/pairs/setab/setaf, which I guess don't make sense in direct color
mode. In this case, would it be possible to change the description to
explicitly say "mlterm3 with direct-color indexing"?