diff --git a/tracker/layout.go b/tracker/layout.go
index 9b33e87..47aad17 100644
--- a/tracker/layout.go
+++ b/tracker/layout.go
@@ -6,37 +6,11 @@ import (
 	"gioui.org/layout"
 	"gioui.org/op/clip"
 	"gioui.org/op/paint"
-	"gioui.org/unit"
-	"gioui.org/widget"
-	"gioui.org/widget/material"
 )
 
 type C = layout.Context
 type D = layout.Dimensions
 
-func smallButton(icStyle material.IconButtonStyle) material.IconButtonStyle {
-	icStyle.Size = unit.Dp(14)
-	icStyle.Inset = layout.UniformInset(unit.Dp(1))
-	return icStyle
-}
-
-func enableButton(icStyle material.IconButtonStyle, enabled bool) material.IconButtonStyle {
-	if !enabled {
-		icStyle.Background = disabledContainerColor
-		icStyle.Color = disabledTextColor
-	}
-	return icStyle
-}
-
-func trackButton(t *material.Theme, w *widget.Clickable, text string, enabled bool) material.ButtonStyle {
-	ret := material.Button(t, w, text)
-	if !enabled {
-		ret.Background = disabledContainerColor
-		ret.Color = disabledTextColor
-	}
-	return ret
-}
-
 func (t *Tracker) Layout(gtx layout.Context) {
 	paint.FillShape(gtx.Ops, backgroundColor, clip.Rect(image.Rect(0, 0, gtx.Constraints.Max.X, gtx.Constraints.Max.Y)).Op())
 	t.VerticalSplit.Layout(gtx,