use consistent icons in NewTrackDialog

gui/NewTrackDialog.hui

@@ -1,11 +1,11 @@
 Dialog new-track-dialog "New track" width=300 height=80 headerbar closebutton=no
 	Grid ? "" vertical width=320
 		Grid ? "" homogenousx box linked
-			ToggleButton type-audio "∿" flat huge expandx "tooltip=Audio" ignorefocus
-			ToggleButton type-midi "♫" flat huge expandx "tooltip=Midi" ignorefocus
-			ToggleButton type-metronome "" image=track-time flat huge expandx "tooltip=Metronome" ignorefocus
-			ToggleButton type-master "" image=track-group flat huge expandx "tooltip=Master" ignorefocus
-			ToggleButton type-preset "❤" flat huge expandx "tooltip=From list of presets" ignorefocus
+			ToggleButton type-audio "" image=track-audio flat big expandx "tooltip=Audio" ignorefocus
+			ToggleButton type-midi "" image=track-midi flat big expandx "tooltip=Midi" ignorefocus
+			ToggleButton type-metronome "" image=track-time flat big expandx "tooltip=Metronome" ignorefocus
+			ToggleButton type-master "" image=track-group flat big expandx "tooltip=Master" ignorefocus
+			ToggleButton type-preset "" image=heart flat big expandx "tooltip=From list of presets" ignorefocus
 		Revealer revealer-channels ""
 			Group g-channels "Channels"
 				Grid ? ""

static/hui_resources.txt

@@ -4453,31 +4453,31 @@ homogenousx,box,linked
 5
 ToggleButton
 type-audio
-flat,huge,expandx,ignorefocus
+margin=40,image=track-audio,flat,expandx,ignorefocus
 0
 0
 0
 ToggleButton
 type-midi
-flat,huge,expandx,ignorefocus
+image=track-midi,flat,expandx,ignorefocus
 1
 0
 0
 ToggleButton
 type-metronome
-image=track-time,flat,huge,expandx,ignorefocus
+image=track-time,flat,expandx,ignorefocus
 2
 0
 0
 ToggleButton
 type-master
-image=track-group,flat,huge,expandx,ignorefocus
+image=track-group,flat,expandx,ignorefocus
 3
 0
 0
 ToggleButton
 type-preset
-flat,huge,expandx,ignorefocus
+image=heart,flat,expandx,ignorefocus
 4
 0
 0
@@ -10871,7 +10871,7 @@ new-track-dialog/save-preset
 
 Save as preset...
 new-track-dialog/type-audio
-∿
+
 Audio
 new-track-dialog/type-master
 
@@ -10880,10 +10880,10 @@ new-track-dialog/type-metronome
 
 Metronome
 new-track-dialog/type-midi
-♫
+
 Midi
 new-track-dialog/type-preset
-❤
+
 From list of presets
 new-track-dialog/user-revealer-synth
 Synthesizer