diff --git a/Cargo.lock b/Cargo.lock
index 2108e59..bf87462 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -60,7 +60,7 @@ checksum = "4aa90d7ce82d4be67b64039a3d588d38dbcc6736577de4a847025ce5b0c468d1"
 
 [[package]]
 name = "amida"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "csscolorparser",
  "glam",
diff --git a/Cargo.toml b/Cargo.toml
index 40cc416..2dc506c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "amida"
-version = "1.2.0"
+version = "1.2.1"
 edition = "2021"
 default-run = "amida"
 
diff --git a/README.md b/README.md
index 82ae4be..4e1a3c8 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,11 @@
 # Amida: 2D Lighting using Radiance Cascades
 
-This program implements 2d lighting using the [radiance cascades](https://radiance-cascades.com/) algorithm by Alexander Sannikov, using the bilinear fix to prevent ringing. It also supports multiple bounces using subsurface scattering and volumetrics.
+This program implements 2d lighting using the [Radiance Cascades](https://radiance-cascades.com/) algorithm by Alexander Sannikov, using the bilinear fix to prevent ringing. It also supports multiple bounces using subsurface scattering and volumetrics.
 
 ## Usage
 
+Note: This program requires a NVIDIA graphics card due to using CUDA.
+
 Download the [latest release](https://github.com/entropylost/amida/releases/), or compile the program yourself by installing [Rust](https://www.rust-lang.org/), and executing `cargo run`, then call the program:
 
 ```
diff --git a/src/bin/environment.rs b/src/bin/environment.rs
index b782166..2716a39 100644
--- a/src/bin/environment.rs
+++ b/src/bin/environment.rs
@@ -4,8 +4,8 @@ use std::f32::consts::TAU;
 
 fn skylight(angle: f32) -> FVec3 {
     // Default:
-    // let sky_color = FVec3::new(0.3, 0.7, 1.0) * 4.0;
-    // let sun_color = FVec3::new(1.0, 1.0, 0.8) * 10.0;
+    let sky_color = FVec3::new(0.3, 0.7, 1.0) * 4.0;
+    let sun_color = FVec3::new(1.0, 1.0, 0.8) * 10.0;
     // Sunset:
     // let sky_color = FVec3::new(0.2, 0.15, 0.4) * 2.0;
     // let sun_color = FVec3::new(1.0, 0.3, 0.1) * 3.0;