Windows can now respond directly to appearance changes

Status: Fixed
Fixed in: v26.7.3
Source discussion: https://forum.objo.dev/d/611-cannot-access-window-controls-from-appappearancechanged
Last updated: 2026-07-18

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Public summary

Window code cannot currently respond directly when the operating system switches between light and dark appearance. Developers must handle App.AppearanceChanged, but Studio's automatically created default window is not exposed as an application-accessible instance, making it unnecessarily difficult to refresh custom canvases and other window controls.

Windows should receive their own AppearanceChanged() event so each open window can update its controls directly.