NSAccentColorName
The name of a color in an asset catalog to use for a target’s global accent color.
Discussion
This Info.plist value controls the global tint color (iOS and watchOS) or accent color (macOS) for the target. When set in a widget extension, the widget configuration user interface uses this color as the tint color while editing a widget.
While you can set this directly in your Info.plist, the recommended approach is to use the Global Accent Color Name build setting (in the Asset Catalog Compiler - Options section) of the target. Set the value of the build setting to the name of the Color Set in the asset catalog. Xcode automatically sets NSAccentColorName to the appropriate value in the Info.plist file when building your project.