Can't change background color from .hyper.js config file

[grasum]

Is there a way to overwrite this line

exports.decorateConfig = config => {
return Object.assign({}, config, {
foregroundColor,
backgroundColor: backgroundColor,
borderColor,
colors,
cursorColor: config.cursorColor || cursorColor,
cursorShape: config.cursorShape || 'BEAM',
fontSize: config.fontSize || 12,
fontFamily: config.fontFamily || '"Fira Code"',
....
});
};

to something like backgroundColor: config.backgroundColor || backgroundColor ?

I am not so well versed in hyperterm. I think there should be a way I can overwrite that specific line from my .hyper.js file, but I'm not sure how.
Or is this something you would like to implement in the plugin itself? To give users more flexibility regarding background colors?