Keynote underline colour differs from text colour

Thanks for trying to help, Gary. I am using Keynote (version 6.6 2550). I type the text, but when I underline, the colour of the line is blue. I searched and found a solution for an older Keynote version. However, the latest version does not have a dropdown menu with the colours, so it seems impossible to change the colour when using the latest version. Text Underline Colour Differences in Keynote

I attach a screen shot - hope it helps!

I hope you are still there, Gary! Seven months later, and I am adding information to my slides. The (default) blue underline is back - and the old "trick" does not work! Please help - it should be underlined in brown, not blue!!

Sorry, for some reason a part of the question is missing. I would like to match the colour of the underline with the colour of the text. I've tried everything so far - without success.

Gary, you are a star! I would never have figured it out! Thanks a million!