Dark Theme Vs Defaut
I use the Dark Theme, others use the Default theme, which has a white background. When adding to a wiki, the font color for the dark theme is white. Someone using the default theme was not able to see the added content in the wiki. I think that the font color should be able to recognize which theme is being used, and the font color adjusted so content is not lost.
Please note: The contrast of colors in the default color scheme in Microsoft Teams does not meet current legislated Accessibility requirements:
AODA in Canada
Section 508 of the Rehabilitation Act in the US
I do understand that using a grey background instead of a white background reduces glare on the screen. However, it is not a sound choice to use a grey font on top of that grey background.
(Side note: The "Feedback" page where I'm entering this comment also does not meet those Accessibility standards.)