Back end font issue

Hello,

First of all,
Thank you for the plugin and the great work.

Once I activate the plugin, the font of the entire back-end panel of my WordPress site gets changed.
I managed to track the problem and commented out the following code from your style.css file located under the /assets/ folder:
html,
body {
margin: 0;
padding: 0;
font-family: Lato;
font-size: 14px;
color: #333
}

I know that modifying a core file of the plugin is a bad idea, so I decided to post this solution here and ask you kindly if you can check out the issue and solve it in a professional way.

Thanks again for your great work.
I recommend the plugin so far, just this little font problem is a bit annoying.