diff --git a/frame.go b/frame.go
index 2ef9695..cf40079 100644
--- a/frame.go
+++ b/frame.go
@@ -60,14 +60,6 @@ var patterns = []pattern{
 	}},
 }
 
-func patternNames() []string {
-	names := make([]string, len(patterns))
-	for i, p := range patterns {
-		names[i] = p.name
-	}
-	return names
-}
-
 // Every pattern is laid out at full length up front with its checksum at each
 // size, so a sender picks a pattern by choosing a buffer, never by writing one.
 type frameSpec struct {
diff --git a/go.mod b/go.mod
index 3ba61d6..b691bda 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,8 @@ module g.fc.run/theater/cabletest
 go 1.26.5
 
 require (
-	golang.org/x/image v0.44.0 // indirect
-	golang.org/x/sys v0.47.0 // indirect
-	golang.org/x/text v0.40.0 // indirect
+	golang.org/x/image v0.44.0
+	golang.org/x/sys v0.47.0
 )
+
+require golang.org/x/text v0.40.0 // indirect
diff --git a/render.go b/render.go
index 1f41f39..c700405 100644
--- a/render.go
+++ b/render.go
@@ -199,14 +199,18 @@ func renderBox(title string, headers []string, rights []bool, rows [][]string) s
 	}
 
 	var b strings.Builder
-	if title != "" {
-		b.WriteString(paint(title, cBold+cCyan) + "\n")
+	writeln := func(s string) {
+		b.WriteString(s)
+		b.WriteByte('\n')
 	}
-	b.WriteString(line("┌", "┬", "┐") + "\n")
-	b.WriteString(rowText(headers, true) + "\n")
-	b.WriteString(line("├", "┼", "┤") + "\n")
+	if title != "" {
+		writeln(paint(title, cBold+cCyan))
+	}
+	writeln(line("┌", "┬", "┐"))
+	writeln(rowText(headers, true))
+	writeln(line("├", "┼", "┤"))
 	for _, r := range rows {
-		b.WriteString(rowText(r, false) + "\n")
+		writeln(rowText(r, false))
 	}
 	b.WriteString(line("└", "┴", "┘"))
 	return b.String()