Select all CSS options

Sometimes my components use several CSS Classes given the complexity of my components (40 -50). I do not need those styles to be attached to the components since those styles are part of the stylesheet.css, in which case I must deselect one at the time to remove all the styles that may end up bundled.

Is there a way to deselect "all" styles from the "new component" interface?

Not that I'm aware of. I too suggested that quite some time ago and am hoping to see that added in one of the future updates as well. You may want to find that post and add your voice to it.