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fix(ios): apply box shadow alpha only once #12

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Merged
farfromrefug merged 1 commit into from
Oct 30, 2026
Merged

fix(ios): apply box shadow alpha only once #12

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5 changes: 3 additions & 2 deletions packages/core/ui/styling/background.ios.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1137,8 +1137,9 @@ function drawBoxShadow(view: View): void {
shadowLayer.allowsEdgeAntialiasing = true;
shadowLayer.contentsScale = Screen.mainScreen.scale;

// Shadow opacity is handled on the shadow's color instance
shadowLayer.shadowOpacity = boxShadow.color?.a ? boxShadow.color.a / 255 : 1;
// Shadow alpha is already carried by the CGColor set below, and CALayer multiplies
// shadowOpacity with it, so keep opacity at 1 to apply the alpha only once.
shadowLayer.shadowOpacity = 1;
// Use this multiplier to imitate CSS shadow blur
shadowLayer.shadowRadius = shadowRadius * 0.5;
shadowLayer.shadowColor = boxShadow.color?.ios?.CGColor;
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