Fix the crash for buttons.

Turns out there was a typo in lerpColor. Fixes #277.

Fix the crash for buttons.
Turns out there was a typo in lerpColor. Fixes #277.
be5545cf · Hixie · 82f5f14b · be5545cf
Commit be5545cf authored Jul 25, 2015 by Hixie
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lerp.dart packages/flutter/lib/base/lerp.dart +1 -1

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--- a/packages/flutter/lib/base/lerp.dart
+++ b/packages/flutter/lib/base/lerp.dart
@@ -22,7 +22,7 @@ Color lerpColor(Color a, Color b, double t) {
  if (a == null && b == null)
    return null;
  if (a == null)
-    return _scaleAlpha(b, t);
+    return _scaleAlpha(a, t);
  if (b == null)
    return _scaleAlpha(b, 1.0 - t);
  return new Color.fromARGB(