The chart background color defaults to white on ios, rather than transparent as it does on Android / Windows. Work around by setting the Background to your color of choice.
1 Answer, 1 is accepted
Lance | Manager Technical Support
answered on 20 Jul 2023, 12:38 PM
Yes, this is correct and is expected behavior due to the native platform differences as the Chart control is not a pure MAUI-only element. Instead they are three separate native chart controls, raised up to .NET MAUI through compatibility handlers.
So, in the case of iOS, the default background is indeed white, thus if you want it to be transparent, you can override it bey setting the BackgroundColor="Transparent":