At the moment I noticed it for form-control and form-select.
It appears since last update 4.6.3.
Isn’t text input supposed to be transparent?
Looking at Bootstrap 5 docs https://getbootstrap.com/docs/5.1/forms/form-control/#variables it shows that the $input-bg
variable uses the $body-bg
variable value, so this is not a bug with the theme manager, but that’s how Bootstrap 5 is supposed to work:
And of course you can change this in the advanced section:
Oh, I see now. Thanks for explanation!