Gnome3 Authentication Popups take over screen

I’m running into an issue on a box I do not have root on. Something running is prompting me to authenticate, but I don’t care about what its doing. The dialog window takes over the entire Gnome3 shell, i can’t minimize it or use any other program. Instead i have to hit cancel 17 times to finally make the dialog go away.

Is there a way to tell gnome to not let dialogs like that take over the session? I want to be able to just minimize and ignore it, so that i don’t have to sit there and hit cancel a million times.

The “attach modal” setting doesn’t do it, since that applies to applications and not the root shell (i’m guessing).

Power Off & Password Prompt ubuntu popups css

I am currently playing with a new gnome theme for Ubuntu 18.04 and trying to fix ugly icons in popups. Does somebody knows whether this could be fixed from theme’s shell.css, and whether there are specific css entries for these popup screens in theme’s shell.css? (or any other ways of fixing the icons). Any help would be much appreciated 🙂
Ugly Power Off popup
Ugly Password Prompt popup
Ugly log-in screen

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.9.2

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.9.2

[GET][NULLED] – Master Popups – Get Subscribers and Grow Your Email List v2.9.0

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – Get Subscribers and Grow Your Email List v2.9.0

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.9

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.9

[GET][NULLED] – Master Popups – Get Subscribers and Grow Your Email List v2.8.8

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – Get Subscribers and Grow Your Email List v2.8.8

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.6

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.6

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.4

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.4

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.2

[​IMG]
[​IMG]

[GET][NULLED] – Master Popups – WordPress Popup Plugin for Lead Generation v2.8.2