Maybe the icon set you're using doesn't have large (enough) icons.
I'm not sure which sizes are included in the one you're using but the default icon set has 32x32 versions, and some icons sets go even larger.
Maybe the icon set you're using doesn't have large (enough) icons.
I'm not sure which sizes are included in the one you're using but the default icon set has 32x32 versions, and some icons sets go even larger.