Keep the debug repaint rainbow color within a valid range (#19355)

Fixes https://github.com/flutter/flutter/issues/18971

Keep the debug repaint rainbow color within a valid range (#19355)
Fixes https://github.com/flutter/flutter/issues/18971
e80c699c · Jason Simmons · GitHub · 99457c92 · e80c699c
Unverified Commit e80c699c authored Jul 19, 2018 by Jason Simmons Committed by GitHub Jul 19, 2018
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view.dart packages/flutter/lib/src/rendering/view.dart +1 -1

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--- a/packages/flutter/lib/src/rendering/view.dart
+++ b/packages/flutter/lib/src/rendering/view.dart
@@ -200,7 +200,7 @@ class RenderView extends RenderObject with RenderObjectWithChildMixin<RenderBox>
      scene.dispose();
      assert(() {
        if (debugRepaintRainbowEnabled || debugRepaintTextRainbowEnabled)
-          debugCurrentRepaintColor = debugCurrentRepaintColor.withHue(debugCurrentRepaintColor.hue + 2.0);
+          debugCurrentRepaintColor = debugCurrentRepaintColor.withHue((debugCurrentRepaintColor.hue + 2.0) % 360.0);
        return true;
      }());
    } finally {