I have a two color gradient, I change one of the colors to 0% opacity. The color that is at 0% opacity is still visible in the middle of the gradient. So why are the option to change this color disabled?
The solution I use is to change the 0% opacity to something above 0%, that enables the color selector, change the color and change back to 0% again. It's a hassle. Please make the color selector available even if the opacity is 0%.