I have the button created i am not trying to change the background or anything. I wanted to know how do you change the opacity for the over state of a button? by the default i have it set to 70% opacity i want to change the over state to 100%
You'll need to leave the overall opacity of the button symbol at 100%, then modify the opacity of each state (up, over, down, etc.) individually. The individual states cannot override a symbol setting. For instance, if your symbol was set to 50% opacity, setting the over state to 100% would only give you 100% of 50% opacity.