In our azure virtual desktop our background image that does have some white conflicts with the desktop icon text. If you hover over an icon it causes the text to look like it disappears. These are running windows 10 enterprise. I need to try and make the desktop icon font black or create a contrast theme that looks like normal windows with black text. Any suggestions?

3 Spice ups

Go to Settings.
Choose Personalization.
Select Themes.
Under Themes, select Theme settings.
On the left pane, click Change desktop icons.

If you have the device joined to domain try group policy for desktop Icons