How do make custom opacity to the pattern

[irsyadadl]

Thanks for the great plugin you made. There are couple features we need to add into this plugin.

Since tailwind css it self has support arbitrary values, so we need the way like heropattern-graphpaper-[red], not just that. This is very important, how do we define the custom opacity for the pattern ? I mean, it would be could if we can do just like this heropattern-graphpaper-gray-800/50. Thanks in advanced.