To check your app's style you could also take a look at the _custom-variables.scss file in your theme folder.
There's a part for the typography with variables you could use in other specific styling you might want to add. Here's an example what your looking for:
//== Step 3: Typography
$font-family-import: 'https://fonts.googleapis.com/css?family=Oxygen:300,regular,700';
$font-family-base: Oxygen;
$font-base-size: 14px;
$font-base-color: #555555;
$link-color: rgba(72, 176, 247, 1);
$font-size-h1: 31px;
$font-size-h2: 26px;
$font-size-h3: 24px;
$font-size-h4: 18px;
$font-color-headers: rgba(233, 131, 0, 1);
Hello Laura,
The font properties depend on your app’s styles.
If by font type you mean the HTML element type, that’s an h2, otherwise I suggest you inspect the header in your app ( right click > inspect) that should give you all the styles applied.
Hope this helps