I think you'll find that this effect is caused by themes which can override a shape's own settings with that of the theme. Turn themes off for your template (No Theme).
Visio Pro 2021 Why does my shapes that I created change color or look different the Icon?
Michael Hickman
0
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I created several images over the years. This one example when drag and drop it into my drawing. I have to re-edit the colors.
Example of a typewriter. I have been using Visio for over the 25 Years and I upgraded to 2021. I looked for a setting to change. Unable to located it. Thanks for for your help.