In Android 7 the app-wise button style is applied to dialog screens as well (possibly buggy behaviour) resulting in white-on-white button text for dialogs. fixed by removing the app-wide button style setting.
In Android 7 the app-wise button style is applied to dialog screens as well (possibly buggy behaviour) resulting in white-on-white button text for dialogs.
fixed by removing the app-wide button style setting.

credentials/irma_android_cardemu