Lanes / Guides / Mission Control labels

What Mission Control gives you, and what it does not

Open Mission Control with a trackpad gesture, F3, or ⌃↑, and macOS shows desktop thumbnails along the top of the screen. Each one is labeled with a generic desktop number. That is fine for two or three desktops, but the labels carry no semantic information.

Why Apple does not show custom names

macOS reserves Space identity for the system. Public APIs do not expose a supported way to name Spaces, change Mission Control labels, or draw into the Mission Control strip.

How third-party tools add labels

Approach A: Overlay

The app renders its own floating window on top of Mission Control and places labels where the thumbnails appear. When Mission Control closes, the overlay closes too. Lanes uses this approach because it avoids SIP changes and Dock injection.

Approach B: Dock injection

Some older utilities inject code into Apple's Dock process and rewrite the labels directly. The labels can look more native, but this is more fragile, can require SIP changes, and can break on macOS updates.

How Lanes shows Mission Control labels

Name your Spaces in Lanes, then trigger Mission Control as usual. Lanes renders a row of card-style labels at the top of each display, one per Space, using the assigned color and icon. The active Lane gets a subtle accent ring.

What about full-screen Spaces?

Full-screen app Spaces get labels too. Lanes shows the owning app's name, then switches into that Space by activating the owning app because Apple's desktop-number shortcuts do not target full-screen Spaces directly.

Setup checklist

1. Allow Lanes in System Settings → Privacy & Security → Accessibility.
2. Turn off Automatically rearrange Spaces based on most recent use in Desktop & Dock → Mission Control.