I've been using this plugin and it mostly works great! However, for some reason changing the text color outline function doesn't seem to work as intended for me. I can only change the text color outline to one of the default colors, and cannot alter its opacity as a result. When I enter one of my custom colors for the main text color, it works fine. But when I enter the same color code to use as an outline, the outline simply doesn't display at all, no matter what the custom color is. Changing the outline to one of the default 0-31 colors makes it display as that color, but it is locked to 50% opacity since setting custom RGBA values is the only way to change that. I've tried turning the auto opacity setting off as instructed, but it doesn't seem to change anything. Custom colors cannot be used for outlines at all, no matter what I do. Do you have any idea what could be causing this issue?