Solved
"floatingPreferencesButton" (Bug + Feature Request)
Hi!
In order to fully customize the floatingPreferencesButton, there should be an additional id attribute.
Because of excessive use of !important styles in the most specific selector
.iubenda-tp-btn:not([data-tp-nostyle])
it is impossible to override the button's styles with custom CSS .
It is even breaking the documented option
_iub.csConfiguration = { ... floatingPreferencesButtonRound: false, ... }
by adding a border-radius of 4px to the button.
There should be an additional id attribute so that the floatingPreferencesButton may be fully customised.
since the most specific selector uses!important styles a lot