Format Picture Color Change
I have a question reguarding the format picture color change options. I have used a folder image and placed it into a slide master. In the slide master I used the format picture color change to make it a lighter variation which works just fine in the editing stage, but once I go into 'preview' the folder turns to a much different color. Do you know if there is anything I have done wrong or why this isn't working?
I have attached the before (lighter) and after (darker image in preview stage) to show you what I mean.
Any help would be greatly appreciated,
Thank you for your time,