Suggestion: indicate that global hide filters are on

Love the global hide filters. But as DO is so complex, sometimes you forget that there's a filter in place. My suggestion is that if DO is currently displaying a folder tree or folder where global filters is hiding files, to indicate - somehow, somewhere - that filtering is taking place, just so the user knows that not all the files/folders are being displayed.

Perhaps there could be a badge on the end of a folder name (in a tree) or on the tab displaying the files in that folder.

For the file display, you can do this using the status bar.

See here:

The status bar shown there is now one of the built-in presets in the Preferences status bar editor.