Set the default text color to white

sky/engine/core/rendering/style/RenderStyle.h

Index: sky/engine/core/rendering/style/RenderStyle.h
diff --git a/sky/engine/core/rendering/style/RenderStyle.h b/sky/engine/core/rendering/style/RenderStyle.h
index 514175af1d8a4d18b7705a225cf93a5a71780f85..2c588c41da88f60f8eda7b6a43f99e9c37e3edba 100644
--- a/sky/engine/core/rendering/style/RenderStyle.h
+++ b/sky/engine/core/rendering/style/RenderStyle.h
@@ -1032,7 +1032,7 @@ public:
     static EWhiteSpace initialWhiteSpace() { return NORMAL; }
     static short initialHorizontalBorderSpacing() { return 0; }
     static short initialVerticalBorderSpacing() { return 0; }
-    static Color initialColor() { return Color::black; }
+    static Color initialColor() { return Color::white; }
     static unsigned initialBorderWidth() { return 3; }
     static unsigned short initialColumnRuleWidth() { return 3; }
     static unsigned short initialOutlineWidth() { return 3; }