Might be related to #5091 but also might not.
That same field label does not turn blue when active, unlike other fields.
Active field EuiSuperSelect component that we're having issues with in #5091
(black default text color on field label)

An active EuiSelect component on same form
(blue highlight/active text color on field label)

Another active EuiSuperSelect component on same form
(blue highlight/active text color on field label)

Might be related to #5091 but also might not.
That same field label does not turn blue when active, unlike other fields.
Active field

EuiSuperSelectcomponent that we're having issues with in #5091(black default text color on field label)
An active

EuiSelectcomponent on same form(blue highlight/active text color on field label)
Another active

EuiSuperSelectcomponent on same form(blue highlight/active text color on field label)