WordPress 6.0 Example: Webfonts API Registering a font from theme.json

webfonts-tt2-example.json

			"fontFamilies": [
				{
					"fontFamily": "-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Oxygen-Sans,Ubuntu,Cantarell,\"Helvetica Neue\",sans-serif",
					"name": "System Font",
					"slug": "system-font"
				},
				{
					"fontFamily": "\"Source Serif Pero\", serif",
					"name": "Source Serif Pero",
					"slug": "source-serif-pero",
					"fontFace": [
						{
							"fontFamily": "Source Serif Pero",
							"fontWeight": "200 900",
							"fontStyle": "normal",
							"fontStretch": "normal",
							"src": [ "file:./assets/fonts/SourceSerif4Variable-Roman.ttf.woff2" ]
						},
						{
							"fontFamily": "Source Serif Pero",
							"fontWeight": "200 900",
							"fontStyle": "italic",
							"fontStretch": "normal",
							"src": [ "file:./assets/fonts/SourceSerif4Variable-Italic.ttf.woff2" ]
						}
					]
				}
			],