diff --git a/src/timer/gui.rs b/src/timer/gui.rs
index 5ce2802..0809d60 100644
--- a/src/timer/gui.rs
+++ b/src/timer/gui.rs
@@ -1,12 +1,11 @@
-use crate::util::display_digits;
-
-use super::state::NextTimerState;
-
 use std::{sync::mpsc::Sender, time::Duration};
 
 use egui::{Color32, Direction, Layout, RichText, Ui};
 use egui_extras::{Size, StripBuilder};
 
+use super::state::NextTimerState;
+use crate::util::display_digits;
+
 pub(crate) fn two_button(
     ui: &mut Ui,
     button1: RichText,
@@ -15,8 +14,8 @@ pub(crate) fn two_button(
     signal2: NextTimerState,
     sender: Sender<NextTimerState>,
     remaining: Duration,
-    color: Color32,
-    size: f32,
+    digit_color: Color32,
+    digit_size: f32,
 ) {
     let sender2 = sender.clone();
     StripBuilder::new(ui)
@@ -42,7 +41,7 @@ pub(crate) fn two_button(
                     });
             });
 
-            display_digits(&mut strip, remaining, color, size);
+            display_digits(&mut strip, remaining, digit_color, digit_size);
         });
 }
 
@@ -52,8 +51,8 @@ pub(crate) fn one_button(
     signal1: NextTimerState,
     sender: Sender<NextTimerState>,
     remaining: Duration,
-    color: Color32,
-    size: f32,
+    digit_color: Color32,
+    digit_size: f32,
 ) {
     StripBuilder::new(ui)
         .size(Size::relative(0.33333))
@@ -66,6 +65,6 @@ pub(crate) fn one_button(
                 }
             });
 
-            display_digits(&mut strip, remaining, color, size);
+            display_digits(&mut strip, remaining, digit_color, digit_size);
         });
 }
diff --git a/src/timer/mod.rs b/src/timer/mod.rs
index 17bf7c7..5535e58 100644
--- a/src/timer/mod.rs
+++ b/src/timer/mod.rs
@@ -5,7 +5,7 @@ use clap::Parser;
 use egui::{Color32, FontId, Layout, RichText, Ui};
 use egui_extras::{Size, StripBuilder};
 
-use crate::{cli::Cli, util::*, AIRHORN, DIGIT_FACTOR, PREDATOR_FONT, TEXT_FACTOR};
+use crate::{cli::Cli, util::*, AIRHORN, DIGIT_FACTOR, MAX_REPAINT, PREDATOR_FONT, TEXT_FACTOR};
 
 mod state;
 use state::{ChronoState, NextTimerState, TimerState};
@@ -44,8 +44,9 @@ impl Timer {
         };
 
         let alarm = if let Some(path) = cli.alarm {
-            let buffer = std::fs::read(&path)
-                .unwrap_or_else(|_| panic!("Could not open {:?} for reading.", path));
+            let buffer = std::fs::read(&path).unwrap_or_else(|_| {
+                panic!("Could not open alarm sound file {:?} for reading.", path)
+            });
             Some(buffer)
         } else if cli.airhorn {
             Some(AIRHORN.to_owned())
@@ -66,7 +67,7 @@ impl Timer {
                 .insert(0, "predator".to_owned());
             ctx.egui_ctx.set_fonts(fonts);
         }
-        ctx.egui_ctx.request_repaint_after(Duration::from_secs(1));
+        ctx.egui_ctx.request_repaint_after(MAX_REPAINT);
         let mut timer = Timer {
             duration,
             direction,
@@ -132,7 +133,6 @@ impl Timer {
                 CountDirection::Down => remaining,
                 CountDirection::Up => self.duration - remaining,
             };
-            // now the numbers
             let color = Color32::DARK_GRAY;
             let tsize = size * DIGIT_FACTOR;
             one_button(
@@ -244,7 +244,7 @@ impl Timer {
             sender,
             remaining,
             color,
-            tsize,
+            vsize * DIGIT_FACTOR,
         );
         if rx.recv().is_ok() {
             self.state = TimerState::Unstarted;