NO_COLOR=1 background opacity

[chapmanjacobd]

It might make sense for NO_COLOR=1 to not override the terminal background (default color), or use a simpler rendering mode. For reference, here is how ncdu does it:

Without NO_COLOR=1:

This gets part of the way there but it probably also breaks some things:

class DiskUsage(App):
    CSS ='''
    Screen {
        opacity: 0%;
    }

    Label {
        text-style: reverse;
    }
    '''

[willmcgugan]

I'm not sure what "transparent" would mean in this context. But NO_COLOR has a well defined meaning, which doesn't offer much flexibility.