Play a video full screen and press a volume key. A dark rounded tile fades in over the picture: a speaker glyph, a row of little blocks, a pause, a slow fade out. That overlay predates the iPhone. It was already running this exact routine back when Mac OS X Tiger was current, and apart from a few cosmetic touch-ups it has not learned a single new trick since.
I should disclose my angle immediately. I build Droppy, a notch app, and replacing that overlay is one of the things it does, so I am not a neutral observer here. But I did not start replacing the system HUD because I needed a feature to sell. I started because I kept rewinding films to reread subtitles that a volume bezel had been sitting on.
Five specific problems
"It looks old" is not a critique, so let me be concrete.
It covers the thing you are looking at. The bezel appears in the lower middle of the screen, which is where subtitles render, where the playback scrubber lives, where speaker notes sit during a presentation. The moment you reach for a volume key is, almost by definition, a moment you are paying close attention to the content. That is precisely when macOS parks a gray tile on top of it, and leaves it there for a couple of seconds after you stop pressing.
You cannot touch it. There is a slider drawn on that bezel, and it is a lie. You cannot click it, you cannot drag the level to where you want it, and your clicks pass straight through the overlay to whatever is underneath, which tells you Apple knows nobody expects it to respond. Meanwhile the Sound slider in Control Center, a few hundred pixels up, is a perfectly good draggable control. The system has an interactive volume slider. It just refuses to show you that one when you touch the volume.
Sixteen blocks. The volume keys move in sixteenth steps, and the bezel renders exactly that: sixteen chunky segments. Anyone who wears headphones at night knows the gap where step one is too loud and mute is silence. There is a fix, holding ⌥⇧ while tapping a volume key adjusts in quarter steps, but it is invisible. The HUD has had two decades of screen time to surface that trick and never has.
It is anchored to nothing. The bezel floats at a fixed offset from the bottom edge, centered, attached to no landmark at all. Not to the menu bar, where sound actually lives. Not to Control Center. Not to the keys you pressed. It is a tooltip for no element.
And it looks like it was designed for Tiger, because it mostly was. Monochrome glyph, blocky segments, that particular shade of gray translucency. Apple has re-cut it a few times over the years, a little smaller here, rounder corners there, and I will not pretend to remember which macOS release did what. The honest summary is that every change was cosmetic and the behavior never moved.
In its defense, it was good once
In 2005 this was sensible design. Screens were small, overlays were expensive to composite, and a quiet translucent square that ignored the mouse was a genuinely elegant way to confirm a key press. Nothing on the screen offered a natural anchor point back then, so the lower third was as good a guess as anywhere.
Then the environment changed around it. The iPhone shipped and eventually moved its own volume overlay out of the center of the screen, to a slim indicator at the edge that you can actually drag. The MacBook grew a notch in 2021, giving every modern Apple laptop a fixed landmark at the top center of the display. The iPhone turned its cutout into the Dynamic Island, a stage that system status animates out of, an idea macOS never picked up. Through all of it, the Mac's volume bezel kept fading in over your film as if nothing had happened.
The system bezel fades in over the lower third, right where subtitles and the scrubber sit.
Droppy draws a slim HUD that emerges from the notch, in menu bar territory, so it covers nothing you were watching.
One key press, two overlays: the stock tile lands on the picture, a notch HUD stays out of it.
What better looks like
Four properties, roughly in order of importance.
- Anchored to a landmark. The notch region is the obvious candidate: it sits at the top center, your eyes already know where it is, and the strip around it is menu bar territory rather than content. A HUD there covers nothing you were watching.
- Interactive. If the overlay draws a slider, it should be a slider. Point at it and drag. Scroll on it to nudge the level. Click the icon to mute. The overlay you summoned with your hands should accept input from them.
- Precise. Continuous adjustment instead of sixteen fixed stops, with a readable number when you want one.
- Materially current. It should look like it belongs to the machine it is running on: the same corner language as the hardware, modern translucency, not a gray tile from another era of the operating system.
None of this is exotic. Most of it already exists on the iPhone in some form. The Mac just never got the memo.
How the replacements approach it
Since the system bezel cannot be restyled, every replacement app makes the same basic move: suppress the stock overlay and draw its own. What differs is taste. Alcove is deliberately minimal and, per my own comparison page, the most native-feeling of the notch apps; its volume and brightness overlays could pass for something Apple shipped. NotchNook added HUDs alongside its widget shelf. The Boring Notch does it free and open source. All of them anchor at the notch, because once the landmark exists there is really only one sensible place to put a transient system overlay.
Droppy's take, since you are on its blog: slim HUDs that emerge from the notch for volume, brightness, keyboard backlight, battery, caps lock, AirPods, and a stack of other events. The battery alert carries a one-tap Low Power Mode button, which is my favorite proof of the whole argument. The moment a HUD can hold a working button, it stops being a picture of the system and becomes part of it.
One adjacent tool deserves a mention. If your specific grievance is external monitors that macOS refuses to control at all, MonitorControl is a free, open source utility that drives display brightness and volume over DDC and draws its own overlay in the process. Different slice of the same problem, and it coexists fine with notch apps.
Who should change nothing
Now the fair part. If you press a volume key twice a day and have never once been annoyed by the bezel, do not install anything. Really.
The stock HUD has virtues no third party can match: it ships with the OS, it works on the lock screen and during setup, and it survives every macOS update without anyone lifting a finger. A replacement is another login item that has to re-earn that reliability release after release. I know exactly what that costs because I pay it; a real fraction of Droppy's changelog is HUD edge cases, brightness keys dying after docking, volume overlays on the wrong display, alerts queued behind other alerts. That maintenance is the honest price of replacing a system surface, and it is only worth paying for people the stock behavior actually bothers.
Who does it bother? People who watch a lot of full screen video. Late-night headphone listeners who want finer steps than sixteenths without memorizing modifier keys. External display owners tired of half-working brightness. And anyone already running a notch app, since the HUDs come along at no extra effort; if that is you, the rest of what that region can do is probably more interesting than the volume slider anyway.
Fossils tell you about the past
The volume bezel is not broken. It has done its one job with total reliability for twenty years, which is more than most software can claim, and there is something almost admirable about that.
But it describes a Mac that no longer exists. A Mac with no notch, no Control Center, no expectation that an overlay might respond to a pointer, no iPhone next to it setting the bar for what transient system UI can be. The hardware changed, the rest of the interface changed, and the little gray tile is still fading in over your film, showing you sixteen blocks, ignoring your clicks.
It earned its retirement. Someone just has to hand it the paperwork.