diff --git a/egui/src/lib.rs b/egui/src/lib.rs
index ce544235..bc08d18c 100644
--- a/egui/src/lib.rs
+++ b/egui/src/lib.rs
@@ -425,7 +425,7 @@ pub fn warn_if_debug_build(ui: &mut crate::Ui) {
 /// ```
 #[macro_export]
 macro_rules! github_link_file_line {
-    ($github_url:expr, $label:expr) => {{
+    ($github_url: expr, $label: expr) => {{
         let url = format!("{}{}#L{}", $github_url, file!(), line!());
         $crate::Hyperlink::new(url).text($label)
     }};
@@ -439,7 +439,7 @@ macro_rules! github_link_file_line {
 /// ```
 #[macro_export]
 macro_rules! github_link_file {
-    ($github_url:expr, $label:expr) => {{
+    ($github_url: expr, $label: expr) => {{
         let url = format!("{}{}", $github_url, file!());
         $crate::Hyperlink::new(url).text($label)
     }};
@@ -462,10 +462,10 @@ macro_rules! github_link_file {
 /// ```
 #[macro_export]
 macro_rules! trace {
-    ($ui:expr) => {{
+    ($ui: expr) => {{
         $ui.trace_location(format!("{}:{}", file!(), line!()))
     }};
-    ($ui:expr, $label:expr) => {{
+    ($ui: expr, $label: expr) => {{
         $ui.trace_location(format!("{} - {}:{}", $label, file!(), line!()))
     }};
 }
@@ -476,7 +476,7 @@ macro_rules! trace {
 /// or with the `debug_egui_assert` feature in debug builds.
 #[macro_export]
 macro_rules! egui_assert {
-    ($($arg:tt)*) => {
+    ($($arg: tt)*) => {
         if cfg!(any(
             feature = "extra_asserts",
             all(feature = "extra_debug_asserts", debug_assertions),
diff --git a/egui_demo_lib/src/lib.rs b/egui_demo_lib/src/lib.rs
index 2bd10bce..4eb7a4ab 100644
--- a/egui_demo_lib/src/lib.rs
+++ b/egui_demo_lib/src/lib.rs
@@ -92,7 +92,7 @@ macro_rules! __egui_github_link_file {
     () => {
         crate::__egui_github_link_file!("(source code)")
     };
-    ($label:expr) => {
+    ($label: expr) => {
         egui::github_link_file!("https://github.com/emilk/egui/blob/master/", $label).small()
     };
 }
@@ -104,7 +104,7 @@ macro_rules! __egui_github_link_file_line {
     () => {
         crate::__egui_github_link_file_line!("(source code)")
     };
-    ($label:expr) => {
+    ($label: expr) => {
         egui::github_link_file_line!("https://github.com/emilk/egui/blob/master/", $label).small()
     };
 }
diff --git a/emath/src/lib.rs b/emath/src/lib.rs
index d8fb5ce6..315d7a44 100644
--- a/emath/src/lib.rs
+++ b/emath/src/lib.rs
@@ -340,7 +340,7 @@ pub fn normalized_angle(mut angle: f32) -> f32 {
 #[test]
 fn test_normalized_angle() {
     macro_rules! almost_eq {
-        ($left:expr, $right:expr) => {
+        ($left: expr, $right: expr) => {
             let left = $left;
             let right = $right;
             assert!((left - right).abs() < 1e-6, "{} != {}", left, right);
@@ -362,7 +362,7 @@ fn test_normalized_angle() {
 /// or with the `debug_egui_assert` feature in debug builds.
 #[macro_export]
 macro_rules! emath_assert {
-    ($($arg:tt)*) => {
+    ($($arg: tt)*) => {
         if cfg!(any(
             feature = "extra_asserts",
             all(feature = "extra_debug_asserts", debug_assertions),
diff --git a/emath/src/numeric.rs b/emath/src/numeric.rs
index 5a8f670c..a9f088d3 100644
--- a/emath/src/numeric.rs
+++ b/emath/src/numeric.rs
@@ -15,7 +15,7 @@ pub trait Numeric: Clone + Copy + PartialEq + PartialOrd + 'static {
 }
 
 macro_rules! impl_numeric_float {
-    ($t:ident) => {
+    ($t: ident) => {
         impl Numeric for $t {
             const INTEGRAL: bool = false;
             const MIN: Self = std::$t::MIN;
@@ -35,7 +35,7 @@ macro_rules! impl_numeric_float {
 }
 
 macro_rules! impl_numeric_integer {
-    ($t:ident) => {
+    ($t: ident) => {
         impl Numeric for $t {
             const INTEGRAL: bool = true;
             const MIN: Self = std::$t::MIN;
diff --git a/emath/src/vec2.rs b/emath/src/vec2.rs
index d5eaaf3a..066eb858 100644
--- a/emath/src/vec2.rs
+++ b/emath/src/vec2.rs
@@ -423,7 +423,7 @@ impl std::fmt::Debug for Vec2 {
 #[test]
 fn test_vec2() {
     macro_rules! almost_eq {
-        ($left:expr, $right:expr) => {
+        ($left: expr, $right: expr) => {
             let left = $left;
             let right = $right;
             assert!((left - right).abs() < 1e-6, "{} != {}", left, right);
diff --git a/epaint/src/lib.rs b/epaint/src/lib.rs
index 9918d82a..8ed2edfc 100644
--- a/epaint/src/lib.rs
+++ b/epaint/src/lib.rs
@@ -157,7 +157,7 @@ pub struct ClippedMesh(
 /// or with the `debug_egui_assert` feature in debug builds.
 #[macro_export]
 macro_rules! epaint_assert {
-    ($($arg:tt)*) => {
+    ($($arg: tt)*) => {
         if cfg!(any(
             feature = "extra_asserts",
             all(feature = "extra_debug_asserts", debug_assertions),