High Contrast

[ClemensInBerlin]

Labels in highlighted elements in high contrast are badly readable.

Currently there is no highlight color for lables.

Environment

• Fluent.Ribbon 9.0.4
• Windows 11
• .NET Framework 5

[batzen]

Which theme are you using? Fluent.Ribbon does not ship any high contast themes.

[ClemensInBerlin]

We are using custome themes and one theme is for High Contrast.
In this theme we use System colors (i.e: SystemColors.ActiveCaptionColor).
We use a registry hooks and a resource dictionary inspired by the SkinResourceDictionary from Michael's Coding Spot.

[batzen]

Ok.
Currently you have to do this yourself by using a custom style and change the foreground inside a style trigger.
The base style key for the Button is RibbonButtonStyle, but you will most likely have to apply that to all controls which is unfortunate and might also require changes to the templates of some control, which makes it even more work.
So i would advise against doing so and wait for a proper solution from my side.

The only workaround i can offer you right now is to not use opaque colors in places where i causes issues.
You can either brighten those colors a bit or add some level of transparency.

In a future version the foreground color will be automatically calculated and set to a value that is best visible on the current background.
I am currently working on getting this to work, then have to apply that to all controls and make sure i don't introduce any performance issues by doing so.

[batzen]

It would also be nice if you could share your current high contrast theme (at least the example from the screenshot) so that i can make sure that everything works as expected when i finish my implementation of calculated foreground colors.

[batzen]

ping @ClemensInBerlin

[ClemensInBerlin]

Sorry, we are just finishing the next release of our application.
We create an own resource dictionary for the high contrast.
We figured out that in some cases the highlight color is too dark or too bright.
Therefor we have six brushes we have own colors and do not use the system colors.
Here is our system dictionary
HighContrastFluentStyle.zip