Switch mode button missing from main outlook window

Question

I am using outlook version 2309 build 16827.20150 and when I open a new message the switch mode (sun/moon) button is there. But in the main window there is no switch mode button for the email viewer. I have not found any place to add it other than a custom view group. Ok, I found it now actually below the ribbon in the message header.

But:

if I select a background other than black (like dark grey) then the reading pane is white regardless of what I do (never change background color box checked or unchecked is the same result). However with custom high contrast themes the reading pane does take on the dark background color. There must be a way to create a custom high contrast theme that looks like black mode but with a dark grey background and otherwise just like the black mode?

Answer 1

Dear Paul,

Thank you for posting to Microsoft Community. We are happy to assist you.

Based on your description, you are experiencing an issue with the switch mode function in Neew Outlook for Windows.

Firstly, I would like to confirm with you that whether you have toggle on the "New Outlook" option in your Outlook client to switch to new Outlook:

If yes, would you please share me some screenshots of the switch mode button and how it shows when you change the option? Then I can do some test according to your scenario and do some further investigation on this.

I look forward to your next update for further analysis. Thank you very much for your cooperation.

Thanks for your precious time. Have a nice day.

Sincerely,

Sherry | Microsoft Community Moderator