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CloseDeveloper reply by Nyquisteroux
Rated 5 out of 5 stars
Thanks for the Calendar colour fix. So 5 stars now.
This is a very nice, uncluttered dark theme.
Hello. fixed. Please, download new version of Dark Night Arcturus X (4.1) from my private Add-on home page (https://www.yonak.pl/tbthemes/) or wait a few days for approval it by Mozilla and then update the theme directly in Thunderbird, @nyquisteroux
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