Runtime theme changing problems on Avalonia 11

[SKProCH]

If you install 3.0.0-preview* version and setup theme changing at runtime you can get troubles with, for example, TextBox colors (and left side bar in our demo):

This is known error and i don't know how to fix it. I think what that is something at Avalonia's side.
I figured out some workarounds:

1. You can set UseCompositor = false and UseDeferredRendering = false at your BuildAvaloniaApp method:
   
   Make sure what you creating proper PLATFORMOptions, where PLATFORM is your platform actually.
2. You can use InvalidateVisual at root element of scene (or at elements what incorrectly painted). After that you should trigger actual repainting of everything - for example, change window size

Also, i need your help to find out exactly what causes this behavior, create a minimal representative example, and help the Avalonia developers fix it (or fix it on our end, but I have no idea). All ideas, PR, examples and other warmly welcomed.

[appleneko2001]

I thought UseDeferredRendering wont affect this.
might we need research our theme applying procedure(((
I can try to addressing the reason of this glitch and fix workaround(if possible)

[appleneko2001]

Wait if InvalidateVisual helps then it means procedure cannot notify avalonia that resources has changed
use Dispatcher invoking notify changes workaround?

[SKProCH]

I thought UseDeferredRendering wont affect this. might we need research our theme applying procedure((( I can try to addressing the reason of this glitch and fix workaround(if possible)

I've already researched our theme applying - it's working fine and as intended. I may have missed something, of course, but I'm sure that's not where the problem is.

Wait if InvalidateVisual helps then it means procedure cannot notify avalonia that resources has changed
use Dispatcher invoking notify changes workaround?

I don't really know what you mean. The change events themselves are generated normally

[SKProCH]

Interesting fact: if we replace <TextBlock Classes="Body2" Text="Home" /> in ListBox in demo's MainWindow with just Home text - it will be change colors fine.

Here is gif:

<ListBox Classes="NoScroll" Name="DrawerList"
         Focusable="{Binding ElementName=LeftDrawer, Path=LeftDrawerOpened}">
  <TextBlock>Home</TextBlock>
    Home
    Buttons
    ...

[SKProCH]

Seems like, if we reset theme at runtime, all controls start working fine.

Step by step:

1. Controls (TextBlock, TextBox) doesn't react to theme changing
2. Remove MaterialTheme from App.Styles completely
3. Add back MaterialTheme to App.Styles
4. Control are reacting to theme changes fine now
   But this is doesn't work for controls which created after theme reattaching. (for example, we have buggy controls at Home tab, do reattach, buggy controls fixed, after that we switch to Fields (TextBox'es) tab, everything doesn't work property for textboxes)

[SKProCH]

Seems like i figured out it in more details

[SKProCH]

Fixed with Avalonia 11 preview 5.