I am exporting a map layout to .jpg and the colours are completely changing on export. It is probably important to note a couple things. I am using Layer Blend - "Exclusion" - and 25% transparency. My layout view shows the colours I want (purple) but they export as green??? Also the greenish colours appear in map view but not the purple in layout view ..... mind explode. See attached. Why is this happening? Isn't a .jpg just basically a screen shot of what I see on the screen in front of me?
Thanks!
try png, it has better options and control
Export to PNG—ArcGIS Pro | Documentation