[Bug] `DrawingView` shows no output without setting `LineColor`

[jfversluis]

Description

Because the default value of LineColor is Color.Default no line is shown when you don't set it explicitly. This is not a great first-time use experience. I would set it to Color.Black by default so that at least something shows when using this for the first time.

Steps to Reproduce

1. Implement a DrawingView like below

<xct:DrawingView BackgroundColor="LightGray" HeightRequest="200" Points="{Binding DrawPoints}" DrawingCompletedCommand="{Binding DrawCompleted}" />

2. Draw on the canvas
3. Notice how nothing appears

Expected Behavior

Actual Behavior

Basic Information

• Version with issue: Current nightly
• Last known good version: N/A
• IDE: VSMac
• Platform Target Frameworks:
  • iOS: 14.5
  • Android: Not tested, but since this happens in shared code I expect this to happen here too
  • UWP:

Workaround

Set LineColor property to something explicitly

Reproduction imagery

Reproduction Link

[jfversluis]

@VladislavAntonyuk FYI

[VladislavAntonyuk]

Fixed. Set LineColor to Black

[jfversluis]

Fixed in #1459