This page contains a list of local storage data held on this site (just on your browser).
Double-click on a key or a value to edit it. Or add a new item, or delete items.
The types you see are not real - items are all stored as string types. This is just guesstimating the intention and validating accordingly to help you not mess up the value unintentionally.
Warning - editing stuff randomly might just mess up certain pages - or cause unpredictable things to happen. In which case, you are best to delete the items to let them get recreated again.