This app was mentioned in 1 comment, with an average of 2.00 upvotes
Awesome! You can use Custom ICS:
https://play.google.com/store/apps/details?id=jp.u1aryz.products.icssearchwidget
And here are the hex codes:
Green: 16ff42
Classic Green: 1aff7e
Amber: ffce53
Blue: 03e7ff