fix icp6 icon size is 48x48 not 64x64

tests/format-support.py

@@ -21,8 +21,8 @@ INFO = {
     24: ['sb24'],
     32: ['il32', 'icp5', 'ic11', 'ic05'],
     36: ['icsB'],
-    48: ['ih32', 'SB24'],
-    64: ['icp6', 'ic12'],
+    48: ['ih32', 'icp6', 'SB24'],
+    64: ['ic12'],
     128: ['it32', 'ic07'],
     256: ['ic08', 'ic13'],
     512: ['ic09', 'ic14'],

tests/test_icnsutil.py

@@ -270,7 +270,7 @@ class TestIcnsType(unittest.TestCase):
             ('it32', 'rgb', '', (128, 128), 49152),  # 3x8-bit
             ('t8mk', 'bin', 'mask', (128, 128), 16384),  # 8-bit mask
             ('ic05', 'argb', '', (32, 32), 4096),  # 4x8-bit
-            ('icp6', 'png', '', (64, 64), None),
+            ('icp6', 'png', '', (48, 48), None),
             ('ic14', 'png', '@2x', (512, 512), None),
             ('info', 'plist', '', None, None),
             ('sbtp', 'icns', 'template', None, None),