I notice that some of my button icons fade out when no item is selected, but others don't. What makes this happen as I quite like the effect?


I notice that some of my button icons fade out when no item is selected, but others don't. What makes this happen as I quite like the effect?


It depends on the command they run, some commands cause buttons to be disabled automatically if no files are selected.
You can get the same effect on other buttons by adding @disablenosel to the top of the function.