== should format at rule color profile ==
@color-profile --swop5c {
  src: url("https://example.org/SWOP2006_Coated5v2.icc");
}
@color-profile device-cmyk {
  src: url('https://drafts.csswg.org/css-color-4/ICCprofiles/Coated_Fogra39L_VIGC_300.icc');
}

[expect]
@color-profile --swop5c {
    src: url("https://example.org/SWOP2006_Coated5v2.icc");
}

@color-profile device-cmyk {
    src: url("https://drafts.csswg.org/css-color-4/ICCprofiles/Coated_Fogra39L_VIGC_300.icc");
}