hi caro, have you seen this Support Article ? How do I change the text and background colours in Thunderbird. I hope the article will give you some insight on how to fix your problem.

All the best from Stockholm.

Hi Fabio,

thank you for your response.

The problem hasn't been solved tho. The link in your message is set to make a new article. So I don't see the information you want to send.

I've made 2 more screenshots to make clear what is weird.

My language is set to Dutch but achtergrondkleur = background color. As you can see, I marked it. But it is set to white. In the second screenshot, you can see it still shows with dark background.

I've tried different theme's. Still the same.

I've tried another setting. Still the same.

Hi again and apologies, the link is actually old and archived, probably the reason the reason that you get the new articles page. Try this link instead How do I change the text and background colours in Thunderbird.

Cheers Fabio

In W10 Settings, Personalization, Colors, what is the default app mode? If it's not Light, change it to that and see if it makes a difference.

In W10 Settings, Personalization, Colors, what is the default app mode? If it's not Light, change it to that and see if it makes a difference.

That did the trick. Thank you!