I have 50 different attributes that I am symbolizing in ArcGIS Pro 2.4. They have a variety of colors with black outlines.
How do I change the outline & transparency of 30 of these attributes at the same time without everything changing to the same color?
I could individually change all 30 but I'd like to highliht those 30 and change just the outline and transparency values, without the colors becoming the same.