App Rules

The default behavior of dimming is “everything except the focused window goes dark”. But some apps are exceptions: you don’t want a video to dim while you watch it, or any veil over a fullscreen IDE. App rules are that exception list.

Rule types

Type	Behavior	Best for
Never dim	All windows of the app always stay in the bright area	Media players, screen recorders, system tools
Pause when frontmost	Dimming pauses entirely while the app is frontmost	Fullscreen IDE, presentations, live streaming

Create a rule

Open Settings → Rules
Click “New rule”
Enter the app process name (case-insensitive), e.g. WeChat, IINA, Code
Pick the rule type and save

Process names usually match the app name; confirm in Activity Monitor (macOS) / Task Manager (Windows) if unsure.

Manage rules

Each rule can be enabled/disabled independently
The list is your exception list — add or remove anytime

Typical uses

Media players: never dim — watching a movie is unaffected
Video calls: pause when frontmost — screen sharing shows a clean picture
Streaming tools: pause when frontmost — no veil in the stream
System tools: never dim — screen recorders and screenshot tools ready anytime

Next steps

Window dimming — the basics
Multi-display — per-screen control