Fixes tests by using in_normal colors for input.

IPython/core/prompts.py

@@ -347,7 +347,7 b' class PromptManager(Configurable):'
             else:
                 colors = color_lists['inp']
                 colors.number, colors.prompt, colors.normal = \
-                        scheme.in_number, scheme.in_prompt, scheme.normal
+                        scheme.in_number, scheme.in_prompt, scheme.in_normal
                 if name=='in2':
                     colors.prompt = scheme.in_prompt2
         else: