Now it seems that ESC can not be used to close symbol library browser, but since that key is used for almost all other dialogs as shortcut for "cancel", I think it should be re-enabled in order to have a consistent behaviour between dialogs and viewers as "hierarchy navigator", "symbol browser", "bus definition", that can be closed using the ESC key.
tested on revision ba4ba5b6689eeb3dab2648115f43ad4d3b8ed790
Now it seems that ESC can not be used to close symbol library browser, but since that key is used for almost all other dialogs as shortcut for "cancel", I think it should be re-enabled in order to have a consistent behaviour between dialogs and viewers as "hierarchy navigator", "symbol browser", "bus definition", that can be closed using the ESC key.
tested on revision ba4ba5b6689eeb3 dab2648115f43ad 4d3b8ed790
Cheers,
Dino.