How to add width to icon without Materialbutton - Flutter

I want to show bold icon in my app but I don't want to use material icon because when I tap on it it show splash effect and I don't want that so is there any way to add width to icons in flutter?

My icon:-

My desire result:-

Here is my code:-

 Padding(
                              padding: const EdgeInsets.only(left: 10),
                              child: Icon(
                                Icons.add,
                                color: DarkBlueColor,
                              ),
                            ),

Solution 1:

Try to use font_awesome_flutter.

Example code:

FaIcon(
  FontAwesomeIcons.plus,
),

Solution 2:

simply you can set the splash color to transparent