Gadgetbridge/app/src/main/res/drawable/ic_vpn_key.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="45sp"
    android:height="45sp"
    android:tint="#7E7E7E"
    android:viewportWidth="30"
    android:viewportHeight="30">
    <path
        android:fillColor="#FF000000"
        android:pathData="M12.65 10C11.83 7.67 9.61 6 7 6c-3.31 0-6 2.69-6 6s2.69 6 6 6c2.61 0 4.83-1.67 5.65-4H17v4h4v-4h2v-4H12.65zM7 14c-1.1 0-2-0.9-2-2s0.9-2 2-2 2 0.9 2 2-0.9 2-2 2z" />
</vector>