Not showing correctly icon in MasterDetailPage Xamarin iOS - xamarin

I'm building cross platfomr app in Xamarin Forms but iOS not showing MasterDetailPage icon correctly.
How to solve this.
iOS:
Android:
Some idea for iOS to show like Android?

If using the app logo icon:
it will show as follows:
Because the background color of the icon is not Transparent. If the background color of icon is transparent, it will work.
Such as contacts.png:
The effect:
Or other Xamarin-50.png:
The effect:
================================Update================================
If you want to show the original color of icon, you need to use the image from Asset Catalogs, you can refer to Adding images to an asset catalog image set to add icon inside asset, but not forget to set icon Render as Original.
For example, image named Cat and add source image as follows:
Then move to the properties of Cat and Render as Original:
The effect:

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Xamarin.iOS: Adding image in visual studio assets.xcassets imageset for both landscape and portrait orienatation

For my Xamarin.iOS project I am using LaunchScreen.Storynboard for showing launch screen. For adding images, I am using asset catalog. My application supports both orientations on iPad. However, when I open imageset in visual studio it shows only one #2x image for iPad which will be occupied by Portrait image. Now, for adding landscape image I have edited its Contents.Json file and added image details there. added image locally and also added its entry in projects .csproject file.
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Thank You.
How to set image for both the orientations in visual studio xcassets
imageset?
LaunchImage ImageSet is the old way which has been deprecated, we don't need to set storyboard or xib on Launch Screen, but it is nothing except image. We can't find a way to set LaunchImage ImageSet in the latest Visual-Studio.
Refer: Xcode 11 UILaunchImages has been deprecated, use launch storyboards instead Warning
Now, in portrait mode image is showing vertically stretched. which is
causing UI issue.
You should use auto-layout to layout your image in both landscape and portrait orientation so that it won't be stretched. See document here: Managing Launch Screens with Storyboards
:

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