diff --git a/src/assets.rs b/src/assets.rs
index d5e2673..6cae6ba 100644
--- a/src/assets.rs
+++ b/src/assets.rs
@@ -14,6 +14,12 @@ pub struct HighlightingAssets {
     pub theme_set: ThemeSet,
 }
 
+impl Default for HighlightingAssets {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl HighlightingAssets {
     pub fn new() -> Self {
         Self::from_dump_file().unwrap_or_else(|_| Self {
diff --git a/src/blur.rs b/src/blur.rs
index 883309f..b9c011f 100644
--- a/src/blur.rs
+++ b/src/blur.rs
@@ -38,9 +38,9 @@ pub fn gaussian_blur(image: RgbaImage, sigma: f32) -> RgbaImage {
     RgbaImage::from_raw(width, height, raw).unwrap()
 }
 
-fn gaussian_blur_impl(data: &mut Vec<[u8; 4]>, width: usize, height: usize, blur_radius: f32) {
+fn gaussian_blur_impl(data: &mut [[u8; 4]], width: usize, height: usize, blur_radius: f32) {
     let bxs = create_box_gauss(blur_radius, 3);
-    let mut backbuf = data.clone();
+    let mut backbuf = data.to_vec();
 
     box_blur(
         &mut backbuf,
@@ -103,8 +103,8 @@ fn create_box_gauss(sigma: f32, n: usize) -> Vec<i32> {
 /// Needs 2x the same image
 #[inline]
 fn box_blur(
-    backbuf: &mut Vec<[u8; 4]>,
-    frontbuf: &mut Vec<[u8; 4]>,
+    backbuf: &mut [[u8; 4]],
+    frontbuf: &mut [[u8; 4]],
     width: usize,
     height: usize,
     blur_radius: usize,
diff --git a/src/utils.rs b/src/utils.rs
index 8026027..7a27824 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -86,7 +86,7 @@ pub(crate) fn add_window_controls(image: &mut DynamicImage, params: &WindowContr
 
     let mut title_bar = RgbaImage::from_pixel(params.width * 3, params.height * 3, background);
     let step = (params.radius * 2) as i32;
-    let spacer = (step * 2) as i32;
+    let spacer = step * 2;
     let center_y = (params.height / 2) as i32;
 
     for (i, (fill, outline)) in color.iter().enumerate() {