showTitleLabel dos not work

[gdcardoso]

I'm using showTitleLabel = {true} but it's not working.

react-native-cli: 2.0.1
react-native: 0.62.2

<SignatureCapture
   style = {[{flex: 1}, styles.signature]}
   ref = {signRef}
   onSaveEvent = {onSaveEvent}
   onDragEvent = {onDragEvent}
   saveImageFileInExtStorage = {false}
   showNativeButtons = {false}
   showTitleLabel
   minStrokeWidth = {5}
   maxStrokeWidth = {5}
   viewMode = "portrait"
/>

[Zain-1998]

Do it like this,
showTitleLabel = {true}