Incorrect colors when attempting to install iOS app

Description of the feature request

When attempting to install an IPA on any iOS device, the OK button on the notice that informs the user that they can go to the device’s Home Screen, is displaying purple on purple, unlike all the other buttons which are white on purple. Visible in the screenshot below.

Use case / for what or how I would use it

Currently the button looks blocked or otherwise disabled, changing the text to white would remove that potential confusion.

Thanks @timTests for the bugreport, we’ll fix this soon.