changing the blue in studio theme

sorry if this is obvious but can i change the 'blue' in studio theme.

i love the studio theme in all ways except for the blue that the links and menu buttons and bottom strip keep. i cannot figure out how to change this blue and it gets in the road of my other theme colours.

i've probably made a mess now out of my editor as i don't really understand html code etc but have been trying to have a go.

please help, even if it's just confirming that this cannot be changed so i can get on with choosing another theme that i can make reflect my brand! thank you :slight_smile:

pamela