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macOS: fix opacity handling

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Not using `NSColor::clearColor()` results in Quartz thinking that the
window is not transparent at all, which results in artifacts.

However, not setting the `windowBackgroundColor` in
`Window::set_transparent` results in border not properly rendered.

Fixes: 94664ff687 (Don't set the background color)
This commit is contained in:
Kirill Chibisov 2024-06-15 15:41:34 +03:00 • committed by GitHub
parent 078b46720b
commit eef6977f45
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3 changed files with 22 additions and 4 deletions
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src/window.rs
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@ -942,8 +942,7 @@ impl Window {
///
/// ## Platform-specific
///
/// - **macOS:** If you're not drawing to the window yourself, you might have to set the
/// background color of the window to enable transparency.
/// - **macOS:** This will reset the window's background color.
/// - **Web / iOS / Android:** Unsupported.
/// - **X11:** Can only be set while building the window, with
/// [`WindowAttributes::with_transparent`].