as the title indicates .. Xenforo Mail CSS inliner still uses old theme colors after changing default style
this cache should be reset when default theme is changed
I have tried to reproduce this and I couldn't. I simply changed one of the palette colours to red and after triggering a new email, it was sent with the expected colour change:
well , seems this follows the option 'Default email style' which I never knew about , so it still uses the inline style of old style until this option is changed.
it is not a bug then but 'may' be a design issue .