How to easily change the color of tab?

ionic-v1
1

Hi every, I am a beginner.I am making one 4 tab application.

I want to modify the color of the header and the tab navigation.Which is the best solution?

2

It’s not the best way to do :
.tabs{ background-color:blue!important; }.nav-bar-tabs-top .bar {
background: red !important;
}``