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Email display

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Since I got my first computer over 20 years ago, my email display has always been black text on a white background. My computer just finished an "upgrade" Now, my email is white text on a black background. How do I change it back?

Since I got my first computer over 20 years ago, my email display has always been black text on a white background. My computer just finished an "upgrade" Now, my email is white text on a black background. How do I change it back?

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change theme in TB (Thunderbird).

some OS/software has began to use dark background & white text, becasue that uses less electricity/battery power , safer for eyes , safer for the screen pixels, etc etc etc etc etc etc.

but if you still want to use, white background & darker-colored text, then you will have to load a theme for that.

more info

you may also see: https://addons.thunderbird.net/en-US/thunderbird/complete-themes/