Fix skin default.

Normand Briere

2019-05-01 a742f6cebf1d471217d836e07934e5c02c22b6db

 Blob.java
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@@ -82,6 +82,7 @@
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     void retile()
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     {
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+                new Exception().printStackTrace();
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         System.exit(0);
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 		ClearList();
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         bRep = (new ImplicitTiler(this, ImplicitTiler.SURFACEID, true, true, true, cellSize, cellSize, tolerance, true)).bRep;