diff --git a/draw.go b/draw.go
index e51343a..2b943ba 100644
--- a/draw.go
+++ b/draw.go
@@ -60,8 +60,10 @@ func drawInput () {
 
 		if character == '_' {
 			application.SetColor(x + xOffset, y, stone.ColorDim)
+			application.SetStyle(x + xOffset, y, stone.StyleNormal)
 		} else {
 			application.SetColor(x + xOffset, y, cell.Color())
+			application.SetStyle(x + xOffset, y, cell.Style())
 		}
 	}
 }
diff --git a/go.mod b/go.mod
index 2c4c704..8489575 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module git.tebibyte.media/sashakoshka/mathpan
 
 go 1.19
 
-require git.tebibyte.media/sashakoshka/stone v0.2.1
+require git.tebibyte.media/sashakoshka/stone v0.5.1
 
 require (
 	github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 // indirect
diff --git a/go.sum b/go.sum
index 9f44c83..3271d8d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-git.tebibyte.media/sashakoshka/stone v0.2.1 h1:qUvuYpl0yN2bY50vXazvH2s6EMvk8IFgvr8QiiA8xvc=
-git.tebibyte.media/sashakoshka/stone v0.2.1/go.mod h1:ISnqmX6xvItOot3eW3YWLcNFeJrGpKetQGQniAjnU2A=
+git.tebibyte.media/sashakoshka/stone v0.5.1 h1:QQo1lccq6bMebXRKlbAoFBKSDbVwvSkXriKHMGvfAkk=
+git.tebibyte.media/sashakoshka/stone v0.5.1/go.mod h1:ISnqmX6xvItOot3eW3YWLcNFeJrGpKetQGQniAjnU2A=
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 h1:1qlsVAQJXZHsaM8b6OLVo6muQUQd4CwkH/D3fnnbHXA=
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298/go.mod h1:D+QujdIlUNfa0igpNMk6UIvlb6C252URs4yupRUV4lQ=
 github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 h1:lTG4HQym5oPKjL7nGs+csTgiDna685ZXjxijkne828g=
diff --git a/keyboard.xcf b/keyboard.xcf
index d228a42..ab9d71f 100644
Binary files a/keyboard.xcf and b/keyboard.xcf differ
diff --git a/tree.go b/tree.go
index b4745f3..806b657 100644
--- a/tree.go
+++ b/tree.go
@@ -232,19 +232,22 @@ func (operation *Operation) Render (target stone.Buffer, offset int) (moved int)
 	}
 	
 	if selectedExpression == operation {
-		target.SetColor(offset, 0, stone.ColorBlue)
+		target.SetColor(offset, 0, stone.ColorYellow)
+		target.SetStyle(offset, 0, stone.StyleHighlight)
 	} else {
 		target.SetColor(offset, 0, stone.ColorDim)
+		target.SetStyle(offset, 0, stone.StyleNormal)
 	}
 	moved ++
 
 	opcodeSymbol := operation.opcode.String()
 	for _, character := range opcodeSymbol {
 		target.SetRune(offset + moved, 0, character)
+		target.SetColor(offset + moved, 0, stone.ColorYellow)
 		if selectedExpression == operation {
-			target.SetColor(offset + moved, 0, stone.ColorBlue)
+			target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 		} else {
-			target.SetColor(offset + moved, 0, stone.ColorYellow)
+			target.SetStyle(offset + moved, 0, stone.StyleNormal)
 		}
 		moved ++
 	}
@@ -262,9 +265,11 @@ func (operation *Operation) Render (target stone.Buffer, offset int) (moved int)
 	}
 	
 	if selectedExpression == operation {
-		target.SetColor(offset + moved, 0, stone.ColorBlue)
+		target.SetColor(offset + moved, 0, stone.ColorYellow)
+		target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 	} else {
 		target.SetColor(offset + moved, 0, stone.ColorDim)
+		target.SetStyle(offset + moved, 0, stone.StyleNormal)
 	}
 	moved ++
 	return
@@ -362,10 +367,11 @@ func (literal *IntegerLiteral) Render (target stone.Buffer, offset int) (moved i
 
 	for _, character := range output {
 		target.SetRune(offset + moved, 0, character)
+		target.SetColor(offset + moved, 0, stone.ColorPurple)
 		if selectedExpression == literal {
-			target.SetColor(offset + moved, 0, stone.ColorBlue)
+			target.SetStyle(offset + moved, 0, stone.StyleHighlight)
 		} else {
-			target.SetColor(offset + moved, 0, stone.ColorPurple)
+			target.SetStyle(offset + moved, 0, stone.StyleNormal)
 		}
 		moved ++
 	}