diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_fs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_fs.glsl
index 216de00c8d3..56040e3d629 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_fs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_fs.glsl
@@ -4,15 +4,11 @@
 uniform vec4 u_color;
 uniform vec4 u_plane;
 
-
 in vec3 v_pos;
 out vec4 out_color;
 
+void main() {
+  if (dot(u_plane, vec4(v_pos, 1)) < 0) discard;
 
-void main()
-{
-	if( dot(u_plane, vec4(v_pos, 1)) < 0 )
-		discard;
-
-	out_color = u_color;
-}
\ No newline at end of file
+  out_color = u_color;
+}
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_vs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_vs.glsl
index 01bc8fca77a..df598c87095 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_vs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/arc_vs.glsl
@@ -3,13 +3,11 @@
 
 layout (location = 0) in vec3 a_pos;
 
-uniform mat4 u_mvp; 
+uniform mat4 u_mvp;
 
 out vec3 v_pos;
 
-
-void main()
-{
-	v_pos = a_pos;
-	gl_Position = u_mvp * vec4(a_pos.xyz, 1);
-}
\ No newline at end of file
+void main() {
+  v_pos = a_pos;
+  gl_Position = u_mvp * vec4(a_pos.xyz, 1);
+}
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/geometry.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/geometry.glsl
index 20910deda4f..97cf338e39b 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/geometry.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/geometry.glsl
@@ -7,18 +7,17 @@ out vec4 vCol;
 layout (triangles) in;
 layout (triangle_strip, max_vertices = 3) out;
 
-void main()
-{ 
-	const vec3 lightDir = normalize(vec3(1,.5,.5));
+void main() {
+  const vec3 lightDir = normalize(vec3(1,.5,.5));
 
-	// compute the normal for the current triangle
-	vec3 triNormal = normalize(cross(vpos[1]-vpos[0], vpos[2]-vpos[0]));
-	//float c = clamp(dot(lightDir,triNormal), 0, 1);
-	float c = abs(dot(lightDir,triNormal));
-	vCol = vec4(.2, .2,0,1) + vec4(c,c,0,1);
+  // compute the normal for the current triangle
+  vec3 triNormal = normalize(cross(vpos[1]-vpos[0], vpos[2]-vpos[0]));
+  //float c = clamp(dot(lightDir,triNormal), 0, 1);
+  float c = abs(dot(lightDir,triNormal));
+  vCol = vec4(.2, .2,0,1) + vec4(c,c,0,1);
 
-	gl_Position = gl_in[0].gl_Position; EmitVertex();
-	gl_Position = gl_in[1].gl_Position; EmitVertex();
-	gl_Position = gl_in[2].gl_Position; EmitVertex();
-	EndPrimitive();
-}
\ No newline at end of file
+  gl_Position = gl_in[0].gl_Position; EmitVertex();
+  gl_Position = gl_in[1].gl_Position; EmitVertex();
+  gl_Position = gl_in[2].gl_Position; EmitVertex();
+  EndPrimitive();
+}
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_fs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_fs.glsl
index 72411cfa99e..26924269055 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_fs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_fs.glsl
@@ -6,8 +6,4 @@ uniform vec4 u_plane;
 in vec3 v_color;
 out vec4 out_color;
 
-
-void main()
-{
-	out_color = vec4(v_color, 1);
-}
\ No newline at end of file
+void main() {out_color = vec4(v_color, 1); }
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_vs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_vs.glsl
index f9f54723786..9d30f9ac49b 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_vs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/per_vertex_color_vs.glsl
@@ -4,13 +4,11 @@
 layout (location = 0) in vec3 a_pos;
 layout (location = 1) in vec3 a_color;
 
-uniform mat4 u_mvp; 
+uniform mat4 u_mvp;
 
 out vec3 v_color;
 
-
-void main()
-{
-	v_color = a_color;
-	gl_Position = u_mvp * vec4(a_pos.xyz, 1);
-}
\ No newline at end of file
+void main() {
+  v_color = a_color;
+  gl_Position = u_mvp * vec4(a_pos.xyz, 1);
+}
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_fs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_fs.glsl
index c40f006f9f7..8b03859512d 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_fs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_fs.glsl
@@ -9,19 +9,16 @@ in vec3 v_normal;
 
 out vec4 out_color;
 
+void main() {
+  if (dot(u_plane, vec4(v_pos, 1)) < 0) discard;
 
-void main()
-{
-	if( dot(u_plane, vec4(v_pos, 1)) < 0 )
-		discard;
+  const vec3 lightDir = normalize(vec3(0,0,-1));
 
-	const vec3 lightDir = normalize(vec3(0,0,-1));
+  //float c = clamp(dot(lightDir,triNormal), 0, 1);
+  vec3 n = normalize(v_normal);
+  float c = abs(dot(lightDir, n) );
+  out_color = u_color * (vec4(.2, .2,.2,1) + 0.8 * vec4(c,c,c,1));
 
-	//float c = clamp(dot(lightDir,triNormal), 0, 1);
-	vec3 n = normalize(v_normal);
-  float c = abs( dot(lightDir, n) );
-	out_color = u_color * (vec4(.2, .2,.2,1) + 0.8*vec4(c,c,c,1));
-
-	//color = vec4(1,1,0,1);
+  //color = vec4(1,1,0,1);
   //color = vCol;
-}
\ No newline at end of file
+}
diff --git a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_vs.glsl b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_vs.glsl
index f08201a1efa..b0f0205ab19 100644
--- a/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_vs.glsl
+++ b/Arrangement_on_surface_2/demo/Arrangement_on_surface_2_earth/shaders/smooth_vs.glsl
@@ -9,12 +9,11 @@ out vec3 v_pos;
 out vec3 v_normal;
 
 uniform mat4 u_mvp;
-uniform mat3 u_normal_matrix; 
+uniform mat3 u_normal_matrix;
 
-void main()
-{
-	v_pos = a_pos;
+void main() {
+  v_pos = a_pos;
   v_normal = u_normal_matrix * a_normal;
-	gl_Position = u_mvp * vec4(a_pos.xyz, 1);
+  gl_Position = u_mvp * vec4(a_pos.xyz, 1);
   //gl_Position = vec4(pos.xyz, 1);
-}
\ No newline at end of file
+}