P: Show filename in Detail view

Either along the top bar or along the bottom bar or as an image overlay (that can be toggled on/off like in LrC), please show the filename when in Detail view.

This would help with identifying specific images as I scroll through, particularly when comparing two or three images (especially as 'Compare' is limited to only two images at a time). Right now, it is possible to see the filename but ONLY when the Info panel is open. This is not ideal for two reasons:
(1) When comparing processing of two+ images, I need to see the Edit panel, which does not show the filename; and

(2) At times, I want to close the right and left panels for larger on-screen images, therefore losing the filename in the Info panel..

Even in Compare mode, the filename is NOT shown--that's crazy!