Hello,
What you are seeing is how changing the color scheme (which is one of the
things that happens when you change your design) affects any color
formatting in a slide where the color was chosen from the color scheme
palette.
Here are some links to Microsoft Office Assistance topics about color
schemes in PowerPoint:
About Color Schemes:
http://office.microsoft.com/assistance/preview.aspx?AssetID=HP051945331033
Applying a Different Color Scheme to Slides:
http://office.microsoft.com/assistance/preview.aspx?AssetID=HP051947841033
If you want some color formatting in your slides to not be affected when
you change designs and/or color schemes then you need to not choose colors
from the current color scheme palette of 8 colors when applying color
formatting to your content.
If you (or anyone else reading this message) think that PowerPoint should
provide more or different options for handling color when changing designs
or color schemes (or specific suggestions for color schemes), don't forget
to send your feedback to Microsoft at:
http://register.microsoft.com/mswish/suggestion.asp
As with all product suggestions, it's important that you not just state
your wish but also why it is important to you that your product suggestion
be implemented by Microsoft. Microsoft receives thousands of product
suggestions every day and we read each one but, in any given product
development cycle, there are only sufficient resources to address the ones
that are most important to our customers so take the extra time to state
your case as clearly and completely as possible.
IMPORTANT: Each submission should be a single suggestion (not a list of
suggestions)
John Langhans
Microsoft Corporation
Supportability Program Manager
Microsoft Office PowerPoint for Windows
Microsoft Office Picture Manager for Windows
For FAQ's, highlights and top issues, visit the Microsoft PowerPoint
support center at:
http://support.microsoft.com/default.aspx?pr=ppt
Search the Microsoft Knowledge Base at:
http://support.microsoft.com/default.aspx?pr=kbhowto
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