a problem with the preferred color scheme

[jls28]

I suspect a problem with the preferred color scheme :

Each time I change the color scheme with put_PreferredColorScheme,
this change the displayed color scheme (AND the result of get_PreferredColorScheme)
for ALL webview2 opened pages : this is ok and this proves the profile of these
pages is the same;

but each time I create a new page, get_PreferredColorScheme (FOR ANY NEW CREATED PAGE)
always return "auto" and this don't always match with displayed color scheme
for this page, the color scheme is the one of the last call of put_PreferredColorScheme;

Win10, runtime 129.0.2792.89

I think this behaviour is not smart.