CaptionTextColor Error

[acaliaro]

Description

I have updated a project to XF 4.0, now I have this error:

No property, bindable property, or event found for 'CaptionTextColor', or mismatching type between value and property.

Code

        <signature:SignaturePadView 
            x:Name="SignaturePadCanvas"
            Grid.Row="0"
            BackgroundColor="{StaticResource Prada.AppBackground}"
            HorizontalOptions="FillAndExpand"
            VerticalOptions="FillAndExpand"
            CaptionText="Privacy"
            CaptionTextColor="Black"
            ClearText="Clear"
            ClearTextColor="Red"
            PromptText="{Binding SignatureText}"
            PromptTextColor="Green"
            SignatureLineColor="Black"
            StrokeWidth="2"
            StrokeColor="Black"/>

Expected Behavior

I would like to have no errors

Actual Behavior

I have errors

Basic Information

• Version with issue: 3.0.0
• Last known good version: 3.0.0 (XF 3.6)
• IDE: Visual Studio 2017
• Platform Target Frameworks:
  • Android: 8.0
  • Xamarin.Forms: 4.0.471375
• Target Devices: Zebra ET50