Fully integrated High-Contrast Accessibility when opening files in Teams
You can make Microsoft Teams better by providing High-Contrast Accessibility support when opening documents within Teams.
Currently, Word, Excel, PowerPoint and OneNote files do not open in High Contrast. within Teams.
Selecting the Teams High-Contrast theme has no impact on this action.
Additionally, Windows 10 High-Contrast settings can't be applied, as the action of opening documents is occurring within the Teams "shell".