Mozilla Thunderbird Themes ?

[Dicehunter]

Noticed for about 2 months now the Thunderbird themes section of the site isn't working, anyone by chance know anywhere else I can get themes from please ? The default blue isn't that nice

 

[jpaul]

coincidentally there is a new quantum/photon/webextension version https://betanews.com/2018/08/07/thunderbird-60-0-unveils-new-look-major-improvements/
mentions themes ... but I am after functionality seems calender built in