Bump RGB crate

Cargo.lock

@@ -88,9 +88,9 @@ dependencies = [
 
 [[package]]
 name = "bytemuck"
-version = "1.15.0"
+version = "1.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d6d68c57235a3a081186990eca2867354726650f42f7516ca50c28d6281fd15"
+checksum = "b236fc92302c97ed75b38da1f4917b5cdda4984745740f153a5d3059e48d725e"
 
 [[package]]
 name = "byteorder"
@@ -439,9 +439,9 @@ dependencies = [
 
 [[package]]
 name = "rgb"
-version = "0.8.37"
+version = "0.8.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05aaa8004b64fd573fc9d002f4e632d51ad4f026c2b5ba95fcb6c2f32c2c47d8"
+checksum = "1aee83dc281d5a3200d37b299acd13b81066ea126a7f16f0eae70fc9aed241d9"
 dependencies = [
  "bytemuck",
 ]

Cargo.toml

@@ -37,7 +37,7 @@ required-features = ["zopfli"]
 
 [dependencies]
 zopfli = { version = "0.8.0", optional = true, default-features = false, features = ["std", "zlib"] }
-rgb = "0.8.37"
+rgb = "0.8.43"
 indexmap = "2.2.6"
 libdeflater = "1.20.0"
 log = "0.4.21"

src/reduction/color.rs

@@ -54,7 +54,7 @@ pub fn reduced_to_indexed(png: &PngImage, allow_grayscale: bool) -> Option<PngIm
             let transparency_pixel = transparent_shade.map(|t| Gray::from(t as u8));
             pmap.into_iter()
                 .map(|px| {
-                    RGB::from(px).alpha(if Some(px) != transparency_pixel {
+                    RGB::from(px).with_alpha(if Some(px) != transparency_pixel {
                         255
                     } else {
                         0
@@ -68,7 +68,7 @@ pub fn reduced_to_indexed(png: &PngImage, allow_grayscale: bool) -> Option<PngIm
             let transparency_pixel = transparent_color.map(|t| t.map(|c| c as u8));
             pmap.into_iter()
                 .map(|px| {
-                    px.alpha(if Some(px) != transparency_pixel {
+                    px.with_alpha(if Some(px) != transparency_pixel {
                         255
                     } else {
                         0