Hi @Bably,
Please find the answer to your questions below.
1. Decrease the space between two sections?
A: Please go to Appearance >> Customize >> Additional CSS and add following CSS
#home-page-widget-area .widget {
padding: 80px 0;
}
In above code 80px padding (space) is added between two section. You can reduce it as per your requirement.
2. Change the font in the overall website?
A: Free version of this theme do not have the option to change fonts. You need to use upgraded premium version for it.
3. Change the background Color only when I am using the Text widget in the home page.
A: You can use following CSS to change background of text widget section
#home-page-widget-area section.widget_text {
background: #ededed;
}
Please change color as per your requirement in above code.
Thank you.