Text in Sign Up page fades into background in dark mode

[Swapnil-2001]

Nature of issue?

• Found a bug

Details about the bug:

• Web browser and version: Google Chrome (86.0.4240.111)
• Operating System: Windows 10
• Steps to reproduce this bug:

While in dark mode, the "Already have an account?.." portion at the bottom fades into the background.

It should ideally look something like this:

@catarak I'd be glad to change this if it would be handy.

[catarak]

@Swapnil-2001 thanks for reporting and go ahead and work on this!