Blue Solid = Add something, activate something, or perform any other primary action.
Blue Outline = Edit, change or update something.
Red = Delete something or make an irreversable change.
Grey = Deactivate something.
Yellow = Reset something or clear a field.
Green = Retained for search.
Added icons where it made sense to do so.
look for "Q" (Queued)... this is logically better if you initiate QSL-sending
by your own... R is for requested by other station to send...
Now we are back to ADIF-Specs-logic :-)