Always user white text on red buttons

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+Changes:
+
+- Improve contrast by always using white text on red buttons
+
 ## v1.4.1 (2020-12-01)
 
 Changes:

app/src/main/res/layout/barcode_selector_activity.xml

@@ -70,6 +70,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:text="@string/barcodeNoBarcode"
+                android:textColor="#FFFFFF"
                 android:enabled="false" />
             <LinearLayout android:orientation="vertical"
                           android:padding="10.0dp"

app/src/main/res/layout/loyalty_card_edit_activity.xml

@@ -130,6 +130,7 @@
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:text="@string/editCard"
+                    android:textColor="#FFFFFF"
                     android:layout_weight="1.0"/>
             </LinearLayout>