I wish that when you choose to install only certain shields, icons of active shields to reorganize. For example if you choose not to install the email shield, or behavioral shield, the other six icons remain separated, it’s ugly. Should automatically resize to the space between them so they get together.
I don’t agree. That space symbolizes a breach in your protection.
I don’t see it as a problem at all, in fact I rather like it that way. It certainly isn’t ugly as the order of the circle isn’t like there are missing segments at different places in the cheese.
Aside from what George has said it shows there are other shields not installed; it also allows you to resize the actual window (I like the overall UI size to be as small as possible), which couldn’t be done as easily as the outer ring displaying the data wouldn’t be that much smaller.
To me, the time and trouble required to create and implement an extra rendering ‘engine’ that could cope with any combination of installed shields is disproportionate to any perceived benefit.
I agree with all 3 posters above me.
Amen. 
I like it just the way it is.