Multiple color options in SearchInputDecoration don't apply

[edeuss]

I have set all 4 colors and only the cursor color seems to apply to the InputDecoration, the borderRadius radius works correctly for the OutlineInputBorder (weirdly just not the color).

searchInputDecoration: SearchInputDecoration(
          cursorColor: Colors.redAccent,
         focusColor: Colors.redAccent,
        border: OutlineInputBorder(
         borderRadius: BorderRadius.circular(8),
             borderSide: BorderSide(
             color: Colors.redAccent,
        ),
      ),
     fillColor: Colors.redAccent,
),