fix some comments

Signed-off-by: rustrover <seekseat@126.com>

core/src/background.rs

@@ -12,7 +12,7 @@ pub enum Background {
 }
 
 impl Background {
-    /// Scales the the alpha channel of the [`Background`] by the given
+    /// Scales the alpha channel of the [`Background`] by the given
     /// factor.
     pub fn scale_alpha(self, factor: f32) -> Self {
         match self {

core/src/widget/text.rs

@@ -330,7 +330,7 @@ where
     }
 }
 
-/// The apperance of some text.
+/// The appearance of some text.
 #[derive(Debug, Clone, Copy, Default)]
 pub struct Appearance {
     /// The [`Color`] of the text.

examples/integration/README.md

@@ -14,7 +14,7 @@ cargo run --package integration_wgpu
 ```
 
 ### How to run this example with WebGL backend
-NOTE: Currently, WebGL backend is is still experimental, so expect bugs.
+NOTE: Currently, WebGL backend is still experimental, so expect bugs.
 
 ```sh
 # 0. Install prerequisites

examples/integration/src/main.rs

@@ -170,7 +170,7 @@ pub fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     // Run event loop
     event_loop.run(move |event, window_target| {
-        // You should change this if you want to render continuosly
+        // You should change this if you want to render continuously
         window_target.set_control_flow(ControlFlow::Wait);
 
         match event {

graphics/src/error.rs

@@ -13,7 +13,7 @@ pub enum Error {
     #[error("a suitable graphics adapter or device could not be found")]
     GraphicsAdapterNotFound,
 
-    /// An error occured in the context's internal backend
-    #[error("an error occured in the context's internal backend")]
+    /// An error occurred in the context's internal backend
+    #[error("an error occurred in the context's internal backend")]
     BackendError(String),
 }

wgpu/src/shader/quad.wgsl

@@ -22,7 +22,7 @@ fn rounded_box_sdf(to_center: vec2<f32>, size: vec2<f32>, radius: f32) -> f32 {
     return length(max(abs(to_center) - size + vec2<f32>(radius, radius), vec2<f32>(0.0, 0.0))) - radius;
 }
 
-// Based on the fragement position and the center of the quad, select one of the 4 radi.
+// Based on the fragment position and the center of the quad, select one of the 4 radi.
 // Order matches CSS border radius attribute:
 // radi.x = top-left, radi.y = top-right, radi.z = bottom-right, radi.w = bottom-left
 fn select_border_radius(radi: vec4<f32>, position: vec2<f32>, center: vec2<f32>) -> f32 {

widget/src/image/viewer.rs

@@ -126,7 +126,7 @@ where
         };
 
         // Only calculate viewport sizes if the images are constrained to a limited space.
-        // If they are Fill|Portion let them expand within their alotted space.
+        // If they are Fill|Portion let them expand within their allotted space.
         match expansion_size {
             Length::Shrink | Length::Fixed(_) => {
                 let aspect_ratio = width as f32 / height as f32;