<!-- This works around some strange Android/ProGuard problem verifying MaskUtil -->
<arg value="-keep class com.google.zxing.qrcode.encoder.MaskUtil { public * ; }"/>
<arg value="-target 5"/>
- <arg value="-optimizationpasses 4"/>
+ <!-- Keeping this low also avoids some weird Android/ProGuard issue I couldn't resolve otherwise -->
+ <arg value="-optimizationpasses 2"/>
<arg value="-dontshrink"/>
<arg value="-dontobfuscate"/>
<arg value="-dontskipnonpubliclibraryclasses"/>