iPhone Themes not working on apple maps?

[GBR]

Hi guys, I loaded the iMatte v5 theme on my iPhone 5, absolutely loving it so far. The only problem is it will not apply the theme to the apple maps icon? All the others are perfect but maps, not sure why this happened and what I need to do to fix it? Any help is appreciated!

 

[GBR]

I figured it out, thought I'd share in case others have the same problem. I changed the file name to "Icon-57@2x.png" and it worked!