Convert the remaining nodes and mark genuine async sources

node-graph/nodes/raster/src/dehaze.rs

@@ -8,7 +8,7 @@ use raster_types::{CPU, Raster};
 use std::cmp::{max, min};
 
 #[node_macro::node(category("Raster: Filter"))]
-async fn dehaze(_: impl Ctx, image_frame: List<Raster<CPU>>, strength: Percentage) -> List<Raster<CPU>> {
+fn dehaze(_: impl Ctx, image_frame: List<Raster<CPU>>, strength: Percentage) -> List<Raster<CPU>> {
 	image_frame
 		.into_iter()
 		.map(|mut row| {

node-graph/nodes/raster/src/filter.rs

@@ -87,7 +87,7 @@ fn unpremultiply_gamma_to_linear(buffer: Image<PremultipliedGammaPixel>) -> Imag
 
 /// Blurs the image with a Gaussian or box blur kernel filter.
 #[node_macro::node(category("Raster: Filter"))]
-async fn blur(
+fn blur(
 	_: impl Ctx,
 	/// The image to be blurred.
 	image_frame: List<Raster<CPU>>,
@@ -124,7 +124,7 @@ async fn blur(
 
 /// Applies a median filter to reduce noise while preserving edges.
 #[node_macro::node(category("Raster: Filter"))]
-async fn median_filter(
+fn median_filter(
 	_: impl Ctx,
 	/// The image to be filtered.
 	image_frame: List<Raster<CPU>>,

node-graph/nodes/raster/src/gradient_map.rs

@@ -10,7 +10,7 @@ use vector_types::GradientStops;
 // https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=%27grdm%27%20%3D%20Gradient%20Map
 // https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=Gradient%20settings%20(Photoshop%206.0)
 #[node_macro::node(category("Raster: Adjustment"))]
-async fn gradient_map<T: Adjust<Color>>(
+fn gradient_map<T: Adjust<Color>>(
 	_: impl Ctx,
 	#[implementations(
 		List<Raster<CPU>>,

node-graph/nodes/raster/src/image_color_palette.rs

@@ -4,7 +4,7 @@ use core_types::list::{Item, List};
 use raster_types::{CPU, Raster};
 
 #[node_macro::node(category("Color"))]
-async fn image_color_palette(
+fn image_color_palette(
 	_: impl Ctx,
 	image: List<Raster<CPU>>,
 	#[default(4)]