Set "Text on primary" to White when Dark mode is enabled

[Todilo]

How do I change the standard text color of black to white for "Text on primary". Like you can do in the demo application?
I want like buttons etc to have White text color instead of the default Black. Using 5.0 release

[Keboo]

So it depends a little bit on the scope that you want to apply it at.

First, if you just apply the default window style Style="{StaticResource MaterialDesignWindow}" to your windows you will get the basic theming support that toggles the foreground and background colors based on the theme.

Assuming you have done that, then the brush that is setting the default text color is TextElement.Foreground="{DynamicResource MaterialDesign.Brush.Foreground}". This is the default foreground color that is applied to all controls in the demo app.

If, instead you are looking to just change the foreground color for the "Primary" theme colors. You can do something like this in your code to directly manipulate the theme colors.

PaletteHelper paletteHelper = new PaletteHelper();
Theme theme = paletteHelper.GetTheme();
theme.PrimaryLight = new ColorPair(theme.PrimaryLight.Color, Colors.White);
theme.PrimaryMid = new ColorPair(theme.PrimaryMid.Color, Colors.White);
theme.PrimaryDark = new ColorPair(theme.PrimaryDark.Color, Colors.White);
paletteHelper.SetTheme(theme);

The second parameter to the ColorPair specifies the contrasting Foreground color that should be used. If, it is left null, then the library will automatically select White or Black depending on which has a higher contrast to the base color (you can look at ColorAssist.ContrastingForegroundColor if you are interested in how that works).

[Todilo]

Thank you!