From 04e60abc1414768313ccbede93c366523398db74 Mon Sep 17 00:00:00 2001
From: Jah-yee <166608075+Jah-yee@users.noreply.github.com>
Date: Sun, 7 Jun 2026 01:44:20 +0800
Subject: [PATCH] fix(BezelNotification): handle non-RGB colorspace for
 background tint alpha

When rawBackgroundTint is not in an RGB colorspace, getRed() returns
false and the alpha parameter is left unmodified (zero), making the
tint fully-transparent. Use alphaComponent as a fallback for non-RGB
colorspaces so that tint works correctly regardless of the source
color's colorspace.

Fixes #28
---
 .../Howl/Configuration/BezelNotificationParameters.swift    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Sources/Howl/Configuration/BezelNotificationParameters.swift b/Sources/Howl/Configuration/BezelNotificationParameters.swift
index a252ac1..2ba865f 100644
--- a/Sources/Howl/Configuration/BezelNotificationParameters.swift
+++ b/Sources/Howl/Configuration/BezelNotificationParameters.swift
@@ -240,7 +240,11 @@ public extension BezelNotificationParameters {
             #if canImport(AppKit)
                 rawBackgroundTintAlpha = rawBackgroundTint.alphaComponent
             #else
-                rawBackgroundTint.getRed(nil, green: nil, blue: nil, alpha: &rawBackgroundTintAlpha)
+                var alpha: CGFloat = 0
+                if !rawBackgroundTint.getRed(nil, green: nil, blue: nil, alpha: &alpha) {
+                    alpha = rawBackgroundTint.alphaComponent
+                }
+                rawBackgroundTintAlpha = alpha
             #endif
             
             return rawBackgroundTint.withAlphaComponent(rawBackgroundTintAlpha * 0.15)