NC 25 2fa icon missing under mobile web at logon

[AndyXheli]

Steps to reproduce

1.Sign into nextcloud via mobile web
2.enter username & password
3.get 2fa screen

[PocketFR]

The SVG icon is white, as is the background.
You can change the color of the icon or add

.two-factor-icon {
background-color: var(--color-primary);
border-radius: 10%;
}

in the style.css file of the app