Change color bar

Hello guys. How to change the color of the bar that contained “left” and “Playlist” wording?

I am very new to Ionic, and sory for my bad English.

just include bar-positive or bar-calm in class=“bar (add here)” will see color difference

Thanks sir!

Just wanna ask one more question, is it possible to use android view in Ionic Creator?

ya try this comment
$ ionic serve --lab
you can able to view both ios and android