diff --git a/font/gofont/gen.go b/font/gofont/gen.go
index 66eb9c3..c7cf2d8 100644
--- a/font/gofont/gen.go
+++ b/font/gofont/gen.go
@@ -60,9 +60,17 @@ func do(ttfName string) {
 		log.Fatal(err)
 	}
 
+	desc := "a proportional-width, sans-serif"
+	if strings.Contains(ttfName, "Mono") {
+		desc = "a fixed-width, slab-serif"
+	}
+
 	b := new(bytes.Buffer)
 	fmt.Fprintf(b, "// generated by go run gen.go; DO NOT EDIT\n\n")
-	fmt.Fprintf(b, "// Package %s provides the %q TrueType font\n// from the Go font family.\n", pkgName, fontName)
+	fmt.Fprintf(b, "// Package %s provides the %q TrueType font\n", pkgName, fontName)
+	fmt.Fprintf(b, "// from the Go font family. It is %s font.\n", desc)
+	fmt.Fprintf(b, "//\n")
+	fmt.Fprintf(b, "// See https://blog.golang.org/go-fonts for details.\n")
 	fmt.Fprintf(b, "package %s\n\n", pkgName)
 	fmt.Fprintf(b, "// TTF is the data for the %q TrueType font.\n", fontName)
 	fmt.Fprintf(b, "var TTF = []byte{")
diff --git a/font/gofont/gobold/data.go b/font/gofont/gobold/data.go
index 2759346..fe2d5e9 100644
--- a/font/gofont/gobold/data.go
+++ b/font/gofont/gobold/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gobold provides the "Go Bold" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gobold
 
 // TTF is the data for the "Go Bold" TrueType font.
diff --git a/font/gofont/gobolditalic/data.go b/font/gofont/gobolditalic/data.go
index ce9ab8c..7d45c77 100644
--- a/font/gofont/gobolditalic/data.go
+++ b/font/gofont/gobolditalic/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gobolditalic provides the "Go Bold Italic" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gobolditalic
 
 // TTF is the data for the "Go Bold Italic" TrueType font.
diff --git a/font/gofont/goitalic/data.go b/font/gofont/goitalic/data.go
index ad6dc8c..cfa095f 100644
--- a/font/gofont/goitalic/data.go
+++ b/font/gofont/goitalic/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package goitalic provides the "Go Italic" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package goitalic
 
 // TTF is the data for the "Go Italic" TrueType font.
diff --git a/font/gofont/gomedium/data.go b/font/gofont/gomedium/data.go
index 5d6525b..85de45d 100644
--- a/font/gofont/gomedium/data.go
+++ b/font/gofont/gomedium/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomedium provides the "Go Medium" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomedium
 
 // TTF is the data for the "Go Medium" TrueType font.
diff --git a/font/gofont/gomediumitalic/data.go b/font/gofont/gomediumitalic/data.go
index fa62fa2..d968fd5 100644
--- a/font/gofont/gomediumitalic/data.go
+++ b/font/gofont/gomediumitalic/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomediumitalic provides the "Go Medium Italic" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomediumitalic
 
 // TTF is the data for the "Go Medium Italic" TrueType font.
diff --git a/font/gofont/gomono/data.go b/font/gofont/gomono/data.go
index 9f1ac8b..b1afd47 100644
--- a/font/gofont/gomono/data.go
+++ b/font/gofont/gomono/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomono provides the "Go Mono" TrueType font
-// from the Go font family.
+// from the Go font family. It is a fixed-width, slab-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomono
 
 // TTF is the data for the "Go Mono" TrueType font.
diff --git a/font/gofont/gomonobold/data.go b/font/gofont/gomonobold/data.go
index 6891109..d76fcd0 100644
--- a/font/gofont/gomonobold/data.go
+++ b/font/gofont/gomonobold/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomonobold provides the "Go Mono Bold" TrueType font
-// from the Go font family.
+// from the Go font family. It is a fixed-width, slab-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomonobold
 
 // TTF is the data for the "Go Mono Bold" TrueType font.
diff --git a/font/gofont/gomonobolditalic/data.go b/font/gofont/gomonobolditalic/data.go
index 5a4fa09..155b07e 100644
--- a/font/gofont/gomonobolditalic/data.go
+++ b/font/gofont/gomonobolditalic/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomonobolditalic provides the "Go Mono Bold Italic" TrueType font
-// from the Go font family.
+// from the Go font family. It is a fixed-width, slab-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomonobolditalic
 
 // TTF is the data for the "Go Mono Bold Italic" TrueType font.
diff --git a/font/gofont/gomonoitalic/data.go b/font/gofont/gomonoitalic/data.go
index 44b5a28..25d598d 100644
--- a/font/gofont/gomonoitalic/data.go
+++ b/font/gofont/gomonoitalic/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package gomonoitalic provides the "Go Mono Italic" TrueType font
-// from the Go font family.
+// from the Go font family. It is a fixed-width, slab-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package gomonoitalic
 
 // TTF is the data for the "Go Mono Italic" TrueType font.
diff --git a/font/gofont/goregular/data.go b/font/gofont/goregular/data.go
index 663e51d..a0138f6 100644
--- a/font/gofont/goregular/data.go
+++ b/font/gofont/goregular/data.go
@@ -1,7 +1,9 @@
 // generated by go run gen.go; DO NOT EDIT
 
 // Package goregular provides the "Go Regular" TrueType font
-// from the Go font family.
+// from the Go font family. It is a proportional-width, sans-serif font.
+//
+// See https://blog.golang.org/go-fonts for details.
 package goregular
 
 // TTF is the data for the "Go Regular" TrueType font.