Highly pigmented acrylic paint works best because it shows up clearly on kraft paper without needing multiple coats. The FolkArt Banner Painting Kit is a great option because it includes 12 acrylic paints in Matte and Metallic finishes, along with a set of paintbrushes. Different brushes help create different effects:
Round brush: best for smaller, smooth lettering and shadowing shapes or letters
Mop brush: great for painting large areas of color or wide lettering
Liner brush: ideal for fine details and accent lettering