Fix iconTint ignored in ShieldConfiguration

[Copilot]

iconTint parameter was silently ignored when configuring shield icons. UIImage.withTintColor(_:) returns a new instance rather than mutating—the tinted image was created and immediately discarded.

Changes

• Assign withTintColor result back to image variable
• Use .alwaysOriginal rendering mode to prevent system override

// Before
if let iconTint = getColor(color: dict["iconTint"] as? [String: Double]) {
    image?.withTintColor(iconTint)  // Result discarded
}

// After
if let iconTint = getColor(color: dict["iconTint"] as? [String: Double]) {
    image = image?.withTintColor(iconTint, renderingMode: .alwaysOriginal)
}

Location: packages/react-native-device-activity/targets/ShieldConfiguration/ShieldConfigurationExtension.swift:64

Original prompt

---

This section details on the original issue you should resolve

<issue_title>iconTint has no effect on shield icon — withTintColor result is discarded</issue_title>
<issue_description>Description

Setting iconTint in updateShield / ShieldConfiguration has no visible effect. The tint color is silently ignored regardless of what value is passed.

Root Cause

In targets/ShieldConfiguration/ShieldConfigurationExtension.swift, the resolveIcon function calls withTintColor but doesn't assign the result back:

// Current (broken) — result is discarded

  if let iconTint = getColor(color: dict["iconTint"] as? [String: Double]) {
      image?.withTintColor(iconTint)
  }

UIImage.withTintColor(_:) is not a mutating method — it returns a new UIImage. The tinted image is created and immediately thrown away, so image is returned untouched.

Fix

  if let iconTint = getColor(color: dict["iconTint"] as? [String: Double]) {
      image = image?.withTintColor(iconTint, renderingMode: .alwaysOriginal)
  }

Using .alwaysOriginal rendering mode ensures the tint colour is preserved and not overridden by the system.

Steps to Reproduce

1. Call updateShield with any iconSystemName and a non-default iconTint colour
2. Trigger the shield — the icon renders in its default system colour, not the specified tint

Environment

• react-native-device-activity version: 0.5.1
  </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes iconTint has no effect on shield icon — withTintColor result is discarded #90

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commit: 1a2b1ce

[Copilot]

Pull request overview

Fixes shield icon tinting in the ShieldConfiguration extension by applying the result of UIImage.withTintColor instead of discarding it, ensuring iconTint actually affects the rendered icon.

Changes:

• Assign the tinted image back to image when iconTint is provided.
• Use .alwaysOriginal rendering mode to prevent the system from overriding the tint.

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