Previously one couldn't load another directory of the same dataset without specifying a list of object names each time. I've added a button to switch dirs, which would save some clicks. Also fixed a problem with the label-color pairs table, which wasn't properly cleared when the user loads another dir (one'd get a bunch of pairs with the same object names but different colors), which also produced inconsistencies between objfile's IDs and label IDs.
Previously one couldn't load another directory of the same dataset without specifying a list of object names each time. I've added a button to switch dirs, which would save some clicks. Also fixed a problem with the label-color pairs table, which wasn't properly cleared when the user loads another dir (one'd get a bunch of pairs with the same object names but different colors), which also produced inconsistencies between objfile's IDs and label IDs.