html - Customize Color Visualization: Geochart -

i'm making customize visualization: geochart. have figured out how change background color, i'm trying change highlighted color. know how this?

        var options = {         backgroundcolor: '#333',         };

currently i'm trying:

coloraxis: {colors: ['404040', '8f2424']},

thanks

try using mark feature similar this.hope helps.

 mark { background-color: yellow; color: black; }

IO