zoom the ui in

src/ui.rs

@@ -133,7 +133,7 @@ struct MidiKeysApp {
 }
 
 impl MidiKeysApp {
-    fn new(_cc: &eframe::CreationContext<'_>, state: DisplayState) -> Self {
+    fn new(cc: &eframe::CreationContext<'_>, state: DisplayState) -> Self {
         // this is where to hook in for customizing egui, like fonts and visuals.
 
         let midi_in: MidiInput =
@@ -141,6 +141,8 @@ impl MidiKeysApp {
         let ports = vec![];
         let messages = vec![];
 
+        cc.egui_ctx.set_zoom_factor(1.25);
+
         MidiKeysApp { midi_in, ports, messages, state, first_render: true }
     }