Issue #3055055 by hash6, scott_euser, jhodgdon, amarphule, anmolgoyal74,...

Issue #3055055 by hash6, scott_euser, jhodgdon, amarphule, anmolgoyal74, Gayathri J, jenniferaube, alonaoneill, diqidoq, kishor_kolekar, abhisekmazumdar: Convert appearance-related modules: breakpoint, color, layout_builder, layout_discovery module hook_help() to topic(s)