Custom Fonts

Families and Variants

A font family is a group of one or more variants, where a variant is a specific weight and style combination – for example, a regular weight and a bold italic weight of the same typeface are two different variants of one family. Built-in fonts and the fonts you upload share this exact same structure; the only difference is that built-in fonts can’t be edited or removed.

Uploading Fonts

You can upload one or more .ttf/.otf files at once. Each file is read independently to extract its weight, italic flag, and embedded family name – if a file has no embedded family name, its filename (without the extension) is used instead. Uploading several files at once processes each one as its own separate addition, not as a single batch, so the merge rules below apply individually to each file.

How Uploads Merge Into Families

An upload never merges into a built-in family, even if the name matches exactly. If no custom family with that name exists yet, the upload becomes a new family; if one does exist and none of its variants share the incoming file’s weight and style, the new variant is added to it.

Moving and Deleting Variants

You can move a variant from one custom family to another. Moving into a built-in family is not allowed, though in practice the family picker doesn’t offer built-in families as a destination to begin with. If moving a variant out of a family leaves that family with no variants left, the now-empty family is automatically removed entirely.

Silent Font Fallback