Hi,
When you use an section of another SPPB layout in your website then the attributes are also present like the dev's used fonts in the addons.
Got a custom css file with fonts served from my own server but the fonts used in the addon are still present but google fonts are disabled. You need to add css in every addon?
Normally when you have a line like below in your custom css that font should be shown on the entire website.
body, p, h1, h2, h3, h4, h5, h6, a, li, span {
font-family: 'Scada' ;
}