Thanks Bob, but I thinking your missing my question and responding to the issue that makes me experimenting to find out the answer difficult.
Yes, the colour hangs over from the previous theme, and although I've seen it a few time setting up my own theme, this is the first time I can replicate it so easy. I'm glad you are looking into it, and that it will get tidies up. But this isn't what I am asking here, this is my question.
How can I set the colour of the in focus from dark grey to my own colour? I cannot find it within Theme editor.
I'd like to make it the yellow orange for my theme, but I cannot find it in theme editor. (its a stretchable field, so I'm guessing it's not a PNG but a colour select.
What is it called?