Base Ground
You can choose multi-colored blended twill or felt space to fill extra space in any area without embroidery stitches. If you Chose 100% Custom patches, none of these bases will be visible on your Embroidered Patches and the only thread will be seen.
If your custom patch maker is 75% or 50%, A few basic patterns will be visible, So if you think 100% patch is too expensive, 75% and 50% patches are a good choice.
Normally, only the background color will be used for the base ground, and all logos, the text will be embroidered.