10 files declare their use of FieldStateBase in Field States UI 8

Checked.php in src/Plugin/FieldState/Checked.php

Collapsed.php in src/Plugin/FieldState/Collapsed.php

Disabled.php in src/Plugin/FieldState/Disabled.php

Enabled.php in src/Plugin/FieldState/Enabled.php

Expanded.php in src/Plugin/FieldState/Expanded.php

Invisible.php in src/Plugin/FieldState/Invisible.php

Optional.php in src/Plugin/FieldState/Optional.php

Required.php in src/Plugin/FieldState/Required.php

Unchecked.php in src/Plugin/FieldState/Unchecked.php

Visible.php in src/Plugin/FieldState/Visible.php