diff --git a/space-crush-app/resources/shader/asteroid/frag.glsl b/space-crush-app/resources/shader/asteroid/frag.glsl
index 2937740..598258a 100644
--- a/space-crush-app/resources/shader/asteroid/frag.glsl
+++ b/space-crush-app/resources/shader/asteroid/frag.glsl
@@ -21,7 +21,7 @@ out vec4 outColor;
 
 void main() {
     float alpha = glow(GLOW_ARGS, fragmentData.texCoords, uGlobal.time);
-    vec4 glow   = vec4(fragmentData.color.rgb, fragmentData.color.a * alpha);
+    vec4 glow   = vec4(fragmentData.color, GLOW_ALPHA * alpha);
     vec4 tex    = texture(uTexture[textureId], 0.5 * GLOW_SIZE * fragmentData.texCoords + vec2(0.5));
 
     outColor = tex * tex.a + glow * (1.0 - tex.a);
diff --git a/space-crush-app/resources/shader/asteroid/shared.glsl b/space-crush-app/resources/shader/asteroid/shared.glsl
index eb621fd..0cf261d 100644
--- a/space-crush-app/resources/shader/asteroid/shared.glsl
+++ b/space-crush-app/resources/shader/asteroid/shared.glsl
@@ -1,13 +1,14 @@
 struct FragmentData {
     vec2 texCoords;
-    vec4 color;
+    vec3 color;
 };
 
 struct VertexData {
     vec2  pos;
     float size;
-    vec4  color;
+    vec3  color;
     int   texture;
 };
 
-const float GLOW_SIZE = 2.0; // relative to planet size
+const float GLOW_SIZE  = 2.0; // relative to planet size
+const float GLOW_ALPHA = 0.2;
diff --git a/space-crush-app/resources/shader/asteroid/vert.glsl b/space-crush-app/resources/shader/asteroid/vert.glsl
index 0b71478..716f7fa 100644
--- a/space-crush-app/resources/shader/asteroid/vert.glsl
+++ b/space-crush-app/resources/shader/asteroid/vert.glsl
@@ -5,7 +5,7 @@
 
 layout (location = 0) in vec2  inPosition;
 layout (location = 1) in float inSize;
-layout (location = 2) in vec4  inColor;
+layout (location = 2) in vec3  inColor;
 layout (location = 3) in int   inTexture;
 
 out VertexData vertexData;
diff --git a/space-crush-app/resources/shader/planet/frag.glsl b/space-crush-app/resources/shader/planet/frag.glsl
index bfb8f6b..87a8cc6 100644
--- a/space-crush-app/resources/shader/planet/frag.glsl
+++ b/space-crush-app/resources/shader/planet/frag.glsl
@@ -20,7 +20,7 @@ out vec4 outColor;
 
 void main() {
     float alpha = glow(GLOW_ARGS, fragmentData.texCoords, uGlobal.time);
-    vec4 glow   = vec4(fragmentData.color.rgb, fragmentData.color.a * alpha);
+    vec4 glow   = vec4(fragmentData.color, GLOW_ALPHA * alpha);
     vec4 tex    = texture(uTexture, 0.5 * GLOW_SIZE * fragmentData.texCoords + vec2(0.5));
 
     outColor = tex * tex.a + glow * (1.0 - tex.a);
diff --git a/space-crush-app/resources/shader/planet/shared.glsl b/space-crush-app/resources/shader/planet/shared.glsl
index 8269fe3..2997a81 100644
--- a/space-crush-app/resources/shader/planet/shared.glsl
+++ b/space-crush-app/resources/shader/planet/shared.glsl
@@ -1,12 +1,13 @@
 struct FragmentData {
     vec2 texCoords;
-    vec4 color;
+    vec3 color;
 };
 
 struct VertexData {
     vec2  pos;
     float size;
-    vec4  color;
+    vec3  color;
 };
 
-const float GLOW_SIZE = 2.0; // relative to planet size
+const float GLOW_SIZE  = 2.0; // relative to planet size
+const float GLOW_ALPHA = 0.2;
diff --git a/space-crush-app/resources/shader/planet/vert.glsl b/space-crush-app/resources/shader/planet/vert.glsl
index 692841e..02ad67a 100644
--- a/space-crush-app/resources/shader/planet/vert.glsl
+++ b/space-crush-app/resources/shader/planet/vert.glsl
@@ -5,12 +5,12 @@
 
 layout (location = 0) in vec2  inPosition;
 layout (location = 1) in float inSize;
-layout (location = 2) in vec4  inColor;
+layout (location = 2) in vec3  inColor;
 
 out VertexData vertexData;
 
 void main() {
-    vertexData.pos     = inPosition;
-    vertexData.size    = inSize;
-    vertexData.color   = inColor;
+    vertexData.pos   = inPosition;
+    vertexData.size  = inSize;
+    vertexData.color = inColor;
 }
diff --git a/space-crush-app/resources/shader/ship/frag.glsl b/space-crush-app/resources/shader/ship/frag.glsl
index 43d99b8..33f3e51 100644
--- a/space-crush-app/resources/shader/ship/frag.glsl
+++ b/space-crush-app/resources/shader/ship/frag.glsl
@@ -21,7 +21,7 @@ out vec4 outColor;
 
 void main() {
     float alpha     = glow(GLOW_ARGS, fragmentData.texCoords, uGlobal.time);
-    vec4  glow      = vec4(fragmentData.color.rgb, fragmentData.color.a * alpha * GLOW_ALPHA);
+    vec4  glow      = vec4(fragmentData.color, GLOW_ALPHA * alpha);
     vec4  tex       = texture(uTexture[textureId], 0.5 * GLOW_SIZE * fragmentData.texCoords + vec2(0.5));
 
     outColor = tex * tex.a + glow * (1.0 - tex.a);
diff --git a/space-crush-app/resources/shader/ship/shared.glsl b/space-crush-app/resources/shader/ship/shared.glsl
index 39842f7..7c6ae68 100644
--- a/space-crush-app/resources/shader/ship/shared.glsl
+++ b/space-crush-app/resources/shader/ship/shared.glsl
@@ -1,15 +1,15 @@
 struct FragmentData {
     vec2 texCoords;
-    vec4 color;
+    vec3 color;
 };
 
 struct VertexData {
     vec2 pos;
     vec2 dir;
-    vec4 color;
+    vec3 color;
     int  texture;
 };
 
 const float SHIP_SIZE  = 25.0; // absolute ship size
 const float GLOW_SIZE  =  4.0; // relative to ship size
-const float GLOW_ALPHA =  0.5;
+const float GLOW_ALPHA =  0.1;
diff --git a/space-crush-app/resources/shader/ship/vert.glsl b/space-crush-app/resources/shader/ship/vert.glsl
index 7781ea3..2228081 100644
--- a/space-crush-app/resources/shader/ship/vert.glsl
+++ b/space-crush-app/resources/shader/ship/vert.glsl
@@ -4,7 +4,7 @@
 
 layout (location = 0) in vec2 inPosition;
 layout (location = 1) in vec2 inDirection;
-layout (location = 2) in vec4 inColor;
+layout (location = 2) in vec3 inColor;
 layout (location = 3) in int  inTexture;
 
 out VertexData vertexData;
diff --git a/space-crush-app/src/constants.rs b/space-crush-app/src/constants.rs
index 6822704..7fb82ea 100644
--- a/space-crush-app/src/constants.rs
+++ b/space-crush-app/src/constants.rs
@@ -1,6 +1,6 @@
 use std::time::Duration;
 
-use glc::vector::Vector4f;
+use glc::vector::Vector3f;
 
 pub const UNIFORM_BUFFER_INDEX_CAMERA: gl::GLuint = 0;
 pub const UNIFORM_BUFFER_INDEX_UNIFORM: gl::GLuint = 1;
@@ -15,4 +15,4 @@ pub const FLEET_SELECT_TEXT_OFFSET: f32 = 40.0;
 pub const FLEET_SELECT_ANIMATION_TIME: f32 = 0.400;
 pub const FLEET_SELECT_TEXT_SIZE: f32 = 24.0;
 
-pub const PLAYER_COLOR_DEFAULT: Vector4f = Vector4f::new(1.0, 1.0, 1.0, 0.1);
+pub const PLAYER_COLOR_DEFAULT: Vector3f = Vector3f::new(1.0, 1.0, 1.0);
diff --git a/space-crush-app/src/main.rs b/space-crush-app/src/main.rs
index 23e164d..2871801 100644
--- a/space-crush-app/src/main.rs
+++ b/space-crush-app/src/main.rs
@@ -1,4 +1,4 @@
-use glc::vector::Vector4f;
+use glc::vector::Vector3f;
 use log::{error, info};
 use rand::random;
 use space_crush_app::{App, Error};
@@ -38,7 +38,7 @@ fn run(vfs: Vfs) -> Result<(), Error> {
     let mut common = Dispatcher::new(&mut world)?;
     let player1 = world
         .create_entity()
-        .with(Player::new(Vector4f::new(0.0, 0.5, 1.0, 0.1)))
+        .with(Player::new(Vector3f::new(0.0, 0.5, 1.0)))
         .build();
     let mut app = App::new(&mut world, player1)?;
 
diff --git a/space-crush-app/src/render/asteroids.rs b/space-crush-app/src/render/asteroids.rs
index 074dd7d..c30a95d 100644
--- a/space-crush-app/src/render/asteroids.rs
+++ b/space-crush-app/src/render/asteroids.rs
@@ -5,7 +5,7 @@ use glc::{
     misc::{BindGuard, Bindable},
     shader::{Program, Type, Uniform},
     texture::Texture,
-    vector::{Vector2f, Vector4f},
+    vector::{Vector2f, Vector3f},
     vertex_array::{DataType, VertexArray},
 };
 use space_crush_common::{
@@ -36,7 +36,7 @@ pub struct Asteroids {
 struct VertexData {
     pos: Vector2f,
     size: gl::GLfloat,
-    color: Vector4f,
+    color: Vector3f,
     texture: gl::GLint,
 }
 
@@ -65,13 +65,13 @@ impl Asteroids {
         const OFFSET_POS: gl::GLsizei = 0;
         const OFFSET_SIZ: gl::GLsizei = OFFSET_POS + size_of::<Vector2f>() as gl::GLsizei;
         const OFFSET_CLR: gl::GLsizei = OFFSET_SIZ + size_of::<gl::GLfloat>() as gl::GLsizei;
-        const OFFSET_TEX: gl::GLsizei = OFFSET_CLR + size_of::<Vector4f>() as gl::GLsizei;
+        const OFFSET_TEX: gl::GLsizei = OFFSET_CLR + size_of::<Vector3f>() as gl::GLsizei;
 
         let vertex_array = VertexArray::builder()
             .bind_buffer(Buffer::new()?)
             .vertex_attrib_pointer(0, 2, DataType::Float, false, STRIDE, OFFSET_POS)?
             .vertex_attrib_pointer(1, 1, DataType::Float, false, STRIDE, OFFSET_SIZ)?
-            .vertex_attrib_pointer(2, 4, DataType::Float, false, STRIDE, OFFSET_CLR)?
+            .vertex_attrib_pointer(2, 3, DataType::Float, false, STRIDE, OFFSET_CLR)?
             .vertex_attrib_pointer(3, 1, DataType::Int, false, STRIDE, OFFSET_TEX)?
             .build()?;
 
diff --git a/space-crush-app/src/render/planets.rs b/space-crush-app/src/render/planets.rs
index a97655f..31b0cc8 100644
--- a/space-crush-app/src/render/planets.rs
+++ b/space-crush-app/src/render/planets.rs
@@ -5,7 +5,7 @@ use glc::{
     misc::{BindGuard, Bindable},
     shader::{Program, Type, Uniform},
     texture::Texture,
-    vector::{Vector2f, Vector4f},
+    vector::{Vector2f, Vector3f},
     vertex_array::{DataType, VertexArray},
 };
 use space_crush_common::{
@@ -35,7 +35,7 @@ pub struct Planets {
 struct VertexData {
     pos: Vector2f,
     size: gl::GLfloat,
-    color: Vector4f,
+    color: Vector3f,
 }
 
 impl Planets {
@@ -67,7 +67,7 @@ impl Planets {
             .bind_buffer(Buffer::new()?)
             .vertex_attrib_pointer(0, 2, DataType::Float, false, STRIDE, OFFSET_POS)?
             .vertex_attrib_pointer(1, 1, DataType::Float, false, STRIDE, OFFSET_SIZ)?
-            .vertex_attrib_pointer(2, 4, DataType::Float, false, STRIDE, OFFSET_CLR)?
+            .vertex_attrib_pointer(2, 3, DataType::Float, false, STRIDE, OFFSET_CLR)?
             .build()?;
 
         let reader_id = world
diff --git a/space-crush-app/src/render/ships.rs b/space-crush-app/src/render/ships.rs
index 3bab420..9466013 100644
--- a/space-crush-app/src/render/ships.rs
+++ b/space-crush-app/src/render/ships.rs
@@ -5,7 +5,7 @@ use glc::{
     misc::{BindGuard, Bindable},
     shader::{Program, Type, Uniform},
     texture::Texture,
-    vector::{Vector2f, Vector4f},
+    vector::{Vector2f, Vector3f},
     vertex_array::{DataType, VertexArray},
 };
 use space_crush_common::{
@@ -34,7 +34,7 @@ pub struct Ships {
 struct VertexData {
     pos: Vector2f,
     dir: Vector2f,
-    color: Vector4f,
+    color: Vector3f,
     texture: gl::GLint,
 }
 
@@ -58,13 +58,13 @@ impl Ships {
         const OFFSET_POS: gl::GLsizei = 0;
         const OFFSET_DIR: gl::GLsizei = OFFSET_POS + size_of::<Vector2f>() as gl::GLsizei;
         const OFFSET_CLR: gl::GLsizei = OFFSET_DIR + size_of::<Vector2f>() as gl::GLsizei;
-        const OFFSET_TEX: gl::GLsizei = OFFSET_CLR + size_of::<Vector4f>() as gl::GLsizei;
+        const OFFSET_TEX: gl::GLsizei = OFFSET_CLR + size_of::<Vector3f>() as gl::GLsizei;
 
         let vertex_array = VertexArray::builder()
             .bind_buffer(Buffer::new()?)
             .vertex_attrib_pointer(0, 2, DataType::Float, false, STRIDE, OFFSET_POS)?
             .vertex_attrib_pointer(1, 2, DataType::Float, false, STRIDE, OFFSET_DIR)?
-            .vertex_attrib_pointer(2, 4, DataType::Float, false, STRIDE, OFFSET_CLR)?
+            .vertex_attrib_pointer(2, 3, DataType::Float, false, STRIDE, OFFSET_CLR)?
             .vertex_attrib_pointer(3, 1, DataType::Int, false, STRIDE, OFFSET_TEX)?
             .build()?;
 
diff --git a/space-crush-common/src/components/player.rs b/space-crush-common/src/components/player.rs
index ece7eb6..f9c7f29 100644
--- a/space-crush-common/src/components/player.rs
+++ b/space-crush-common/src/components/player.rs
@@ -1,4 +1,4 @@
-use glc::vector::Vector4f;
+use glc::vector::Vector3f;
 use serde::{Deserialize, Serialize};
 use specs::{
     error::NoError,
@@ -9,7 +9,7 @@ use specs::{
 #[derive(Clone, Debug, Default, Serialize, Deserialize)]
 pub struct Player {
     index: usize,
-    color: Vector4f,
+    color: Vector3f,
 }
 
 #[derive(Copy, Clone, Debug)]
@@ -24,7 +24,7 @@ pub struct OwnedData<M> {
 
 impl Player {
     #[inline]
-    pub fn new(color: Vector4f) -> Self {
+    pub fn new(color: Vector3f) -> Self {
         Self {
             index: next_index(),
             color,
@@ -37,7 +37,7 @@ impl Player {
     }
 
     #[inline]
-    pub fn color(&self) -> &Vector4f {
+    pub fn color(&self) -> &Vector3f {
         &self.color
     }
 }