diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 265a257..c6db14f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,8 +18,8 @@ jobs:
     - name: Build library and examples
       run: |
         (cd GRRLIB && make clean all install)
-        (cd examples && make)
         (cd GRRLIB/GRRLIB && make PLATFORM=cube clean all install)
+        (cd examples && make)
 
     - uses: actions/upload-artifact@master
       with:
diff --git a/GRRLIB/GRRLIB/GRRLIB_3D.c b/GRRLIB/GRRLIB/GRRLIB_3D.c
index b352d30..95da1ef 100644
--- a/GRRLIB/GRRLIB/GRRLIB_3D.c
+++ b/GRRLIB/GRRLIB/GRRLIB_3D.c
@@ -184,7 +184,7 @@ void GRRLIB_ObjectViewScale(f32 scalx, f32 scaly, f32 scalz) {
 }
 
 /**
- * Rotate the object matrix to draw object .
+ * Rotate the object matrix to draw object.
  * @param angx x rotation angle of the object.
  * @param angy y rotation angle of the object.
  * @param angz z rotation angle of the object.
diff --git a/examples/3D_Light1/source/main.c b/examples/3D_Light1/source/main.c
index b659b27..b7e13a3 100644
--- a/examples/3D_Light1/source/main.c
+++ b/examples/3D_Light1/source/main.c
@@ -38,7 +38,7 @@ int main() {
         GRRLIB_Camera3dSettings(0.0f,0.0f,camZ, 0,1,0, 0,0,0);
         GRRLIB_SetLightAmbient(0x333333FF);
 
-		GRRLIB_3dMode(0.1, 1000, 45, 0, 1);
+        GRRLIB_3dMode(0.1, 1000, 45, 0, 1);
 
         if(WPAD_ButtonsHeld(0) & WPAD_BUTTON_A) {
             // Set all light off to get the sphere no light sourced (only get the vertex color)
diff --git a/examples/3D_Light4/source/main.c b/examples/3D_Light4/source/main.c
index f4fe52f..a4e1d65 100644
--- a/examples/3D_Light4/source/main.c
+++ b/examples/3D_Light4/source/main.c
@@ -1,6 +1,6 @@
 /*===========================================
         GRRLIB
-	Spot Light Sample Code
+    Spot Light Sample Code
 ============================================*/
 #include <grrlib.h>
 
diff --git a/examples/NEED_GRRLIB_FUNCTION/source/main.c b/examples/NEED_GRRLIB_FUNCTION/source/main.c
index 4b98f1f..4e97957 100644
--- a/examples/NEED_GRRLIB_FUNCTION/source/main.c
+++ b/examples/NEED_GRRLIB_FUNCTION/source/main.c
@@ -20,13 +20,13 @@
 extern Mtx _GRR_view;
 
 int main() {
-f32 a= 0.0f;
-GXLightObj MyLight0;
-GXLightObj MyLight1;
-int demo=0;
+    f32 a = 0.0f;
+    GXLightObj MyLight0;
+    GXLightObj MyLight1;
+    int demo = 0;
 
-Mtx mr,mv,rx,ry,rz,m;
-GXTexObj  texObj;
+    Mtx mr,mv,rx,ry,rz,m;
+    GXTexObj  texObj;
 
     GRRLIB_Init();
     WPAD_Init();
@@ -42,7 +42,7 @@ GXTexObj  texObj;
     GRRLIB_SetBackgroundColour(0x40, 0x40, 0x40, 0xFF);
 
     while(1) {
-	GRRLIB_Camera3dSettings(0.0f,0.0f,10.0f, 0,1,0, 0,0,0);
+        GRRLIB_Camera3dSettings(0.0f,0.0f,10.0f, 0,1,0, 0,0,0);
 
         GRRLIB_2dMode();
         WPAD_ScanPads();
@@ -52,7 +52,7 @@ GXTexObj  texObj;
 
         GRRLIB_3dMode(0.1,1000,45,0,1);
 
-	if(demo==0){
+	if(demo==0) {
 		/////////////////// DEFINE A  DIFUSE LIGHT /////////////////////////////////////////////
 		guVector l0pos={0.0f,20.0f,0.0f};
 	    	guVecMultiply(_GRR_view, &l0pos, &l0pos);
@@ -81,7 +81,7 @@ GXTexObj  texObj;
 		GRRLIB_Printf(20, 30, tex_font, 0xFFFFFFFF, 1, "Simple Demo 1 Diffuse Light Source");
 	}
 
-	if(demo==1){
+	if(demo==1) {
 		/////////////////// DEFINE 2 DIFUSE LIGHTS /////////////////////////////////////////////
 		guVector l0pos={0.0f,20.0f,0.0f};
 	    	guVecMultiply(_GRR_view, &l0pos, &l0pos);
@@ -118,7 +118,7 @@ GXTexObj  texObj;
 		GRRLIB_Printf(20, 30, tex_font, 0xFFFFFFFF, 1, "Simple Demo 2 Diffuse Light Sources");
 	}
 
-	if(demo==2){
+	if(demo==2) {
 		/////////////////// DEFINE A  SPECUALR LIGHT /////////////////////////////////////////////
 		guVector l0dir={0.0f,0.0f,0.0f};
     		GX_InitSpecularDir(&MyLight0, l0dir.x,l0dir.y,l0dir.z);
@@ -158,7 +158,7 @@ GXTexObj  texObj;
 		GRRLIB_Printf(20, 30, tex_font, 0xFFFFFFFF, 1, "Simple Demo 1 Specular Source with shininess = 20");
 	}
 
-	if(demo==3){
+	if(demo==3) {
 		/////////////////// DEFINE A  SPECUALR LIGHT /////////////////////////////////////////////
 		guVector l0dir={0.0f,0.0f,0.0f};
     		GX_InitSpecularDir(&MyLight0, l0dir.x,l0dir.y,l0dir.z);
@@ -197,7 +197,7 @@ GXTexObj  texObj;
         	GRRLIB_2dMode();
 		GRRLIB_Printf(20, 30, tex_font, 0xFFFFFFFF, 1, "Simple Demo 1 Specular Source with shininess = 200");
 	}
-	if(demo==4){
+	if(demo==4) {
 		GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX3x4, GX_TG_NRM, GX_TEXMTX0); // We say we use the Normal coord to map the texture (since there is no textcoord with this torus)
         	guLightFrustum(mv, 1.0F, -1.0F, 1.0F, -1.0F, 1.0F, 0.5F, 0.5F, 0.5F, 0.5F); // we are projecting the texture like a light (ie : videoprojector))
 
@@ -219,7 +219,7 @@ GXTexObj  texObj;
         	GRRLIB_2dMode();
 		GRRLIB_Printf(20, 30, tex_font, 0xFFFFFFFF, 1, "Simple Demo Mapping Using textgen from normal coord");
 	}
-	if(demo==5){
+	if(demo==5) {
 		GX_SetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX3x4, GX_TG_NRM, GX_TEXMTX0); // We say we use the Normal coord to map the texture (since there is no textcoord with this torus)
         	guLightFrustum(mv, 1.0F, -1.0F, 1.0F, -1.0F, 1.0F, 0.5F, 0.5F, 0.5F, 0.5F); // we are projecting the texture like a light (ie : videoprojector))
         	guMtxRotDeg(rx, 'X', a);     //  Here i rotate the texture
@@ -256,4 +256,3 @@ GXTexObj  texObj;
 
     exit(0);
 }
-
diff --git a/examples/unlimited2d/source/main.c b/examples/unlimited2d/source/main.c
index 38234da..66c4707 100644
--- a/examples/unlimited2d/source/main.c
+++ b/examples/unlimited2d/source/main.c
@@ -65,8 +65,8 @@ int main() {
         GRRLIB_DrawImg(0, 0, tex_screen[screen_index], 0, 1, 1, 0xFFFFFFFF);
         GRRLIB_DrawImg(((R + r-ff)*cos(t-f) - d*cos(((R + r-f)/r)*t))+rmode->fbWidth/2-32, ((R + r-ff)*sin(t) - d*sin(((R + r)/r)*t)-f)+rmode->efbHeight/2-32, tex_ball, 1, 1, 1, 0xFFFFFFFF);
         GRRLIB_Screen2Texture(0, 0, tex_screen[screen_index], GX_FALSE);
-        GRRLIB_Printf((640-(16*6*5))/2+5, 200+5, tex_font, 0x00000088, 5, "%06d",(int)spr);
-        GRRLIB_Printf((640-(16*6*5))/2, 200, tex_font, 0xFFEEEE88, 5, "%06d",(int)spr);
+        GRRLIB_Printf((640-(16*6*5))/2+5, 200+5, tex_font, 0x00000088, 5, "%06d", (int)spr);
+        GRRLIB_Printf((640-(16*6*5))/2, 200, tex_font, 0xFFEEEE88, 5, "%06d", (int)spr);
 
         GRRLIB_Render();
         screen_index++;
diff --git a/examples/unlimited3d/source/main.c b/examples/unlimited3d/source/main.c
index 223c7c0..e017c13 100644
--- a/examples/unlimited3d/source/main.c
+++ b/examples/unlimited3d/source/main.c
@@ -161,8 +161,8 @@ int main() {
 
         GRRLIB_2dMode();
         GRRLIB_Screen2Texture(0, 0, tex_screen[screen_index], GX_FALSE);
-        GRRLIB_Printf((640-(16*6*5))/2+5, 200+5, tex_font, 0x00000088, 5, "%06d",(int)spr);
-        GRRLIB_Printf((640-(16*6*5))/2, 200, tex_font, 0xFFEEEE88, 5, "%06d",(int)spr);
+        GRRLIB_Printf((640-(16*6*5))/2+5, 200+5, tex_font, 0x00000088, 5, "%06d", (int)spr);
+        GRRLIB_Printf((640-(16*6*5))/2, 200, tex_font, 0xFFEEEE88, 5, "%06d", (int)spr);
 
         GRRLIB_Render();
         screen_index++;
@@ -193,4 +193,3 @@ int main() {
 
     return 0;
 }
-
diff --git a/grrlib.doxygen b/grrlib.doxygen
index f3e10cb..3dec7d1 100644
--- a/grrlib.doxygen
+++ b/grrlib.doxygen
@@ -1,4 +1,4 @@
-# Doxyfile 1.9.3
+# Doxyfile 1.9.4
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
@@ -12,6 +12,15 @@
 # For lists, items can also be appended using:
 # TAG += value [value, ...]
 # Values that contain spaces should be placed between quotes (\" \").
+#
+# Note:
+#
+# Use doxygen to compare the used configuration file with the template
+# configuration file:
+# doxygen -x [configFile]
+# Use doxygen to compare the used configuration file with the template
+# configuration file without replacing the environment variables:
+# doxygen -x_noenv [configFile]
 
 #---------------------------------------------------------------------------
 # Project related configuration options
@@ -60,16 +69,28 @@ PROJECT_LOGO           =
 
 OUTPUT_DIRECTORY       =
 
-# If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
-# directories (in 2 levels) under the output directory of each output format and
-# will distribute the generated files over these directories. Enabling this
+# If the CREATE_SUBDIRS tag is set to YES then doxygen will create up to 4096
+# sub-directories (in 2 levels) under the output directory of each output format
+# and will distribute the generated files over these directories. Enabling this
 # option can be useful when feeding doxygen a huge amount of source files, where
 # putting all generated files in the same directory would otherwise causes
-# performance problems for the file system.
+# performance problems for the file system. Adapt CREATE_SUBDIRS_LEVEL to
+# control the number of sub-directories.
 # The default value is: NO.
 
 CREATE_SUBDIRS         = NO
 
+# Controls the number of sub-directories that will be created when
+# CREATE_SUBDIRS tag is set to YES. Level 0 represents 16 directories, and every
+# level increment doubles the number of directories, resulting in 4096
+# directories at level 8 which is the default and also the maximum value. The
+# sub-directories are organized in 2 levels, the first level always has a fixed
+# numer of 16 directories.
+# Minimum value: 0, maximum value: 8, default value: 8.
+# This tag requires that the tag CREATE_SUBDIRS is set to YES.
+
+CREATE_SUBDIRS_LEVEL   = 8
+
 # If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII
 # characters to appear in the names of generated files. If set to NO, non-ASCII
 # characters will be escaped, for example _xE3_x81_x84 will be used for Unicode
@@ -81,14 +102,14 @@ ALLOW_UNICODE_NAMES    = NO
 # The OUTPUT_LANGUAGE tag is used to specify the language in which all
 # documentation generated by doxygen is written. Doxygen will use this
 # information to generate all constant output in the proper language.
-# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
-# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
-# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
-# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
-# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
-# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
-# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
-# Ukrainian and Vietnamese.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Bulgarian,
+# Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, Dutch, English
+# (United States), Esperanto, Farsi (Persian), Finnish, French, German, Greek,
+# Hindi, Hungarian, Indonesian, Italian, Japanese, Japanese-en (Japanese with
+# English messages), Korean, Korean-en (Korean with English messages), Latvian,
+# Lithuanian, Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese,
+# Romanian, Russian, Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish,
+# Swedish, Turkish, Ukrainian and Vietnamese.
 # The default value is: English.
 
 OUTPUT_LANGUAGE        = English
@@ -452,7 +473,7 @@ TYPEDEF_HIDES_STRUCT   = NO
 
 LOOKUP_CACHE_SIZE      = 0
 
-# The NUM_PROC_THREADS specifies the number threads doxygen is allowed to use
+# The NUM_PROC_THREADS specifies the number of threads doxygen is allowed to use
 # during processing. When set to 0 doxygen will based this on the number of
 # cores available in the system. You can set it explicitly to a value larger
 # than 0 to get more control over the balance between CPU load and processing
@@ -577,7 +598,7 @@ INTERNAL_DOCS          = NO
 # filesystem is case sensitive (i.e. it supports files in the same directory
 # whose names only differ in casing), the option must be set to YES to properly
 # deal with such files in case they appear in the input. For filesystems that
-# are not case sensitive the option should be be set to NO to properly deal with
+# are not case sensitive the option should be set to NO to properly deal with
 # output files written for symbols that only differ in casing, such as for two
 # classes, one named CLASS and the other named Class, and to also support
 # references to files without having to specify the exact matching casing. On
@@ -851,10 +872,21 @@ WARN_AS_ERROR          = NO
 # and the warning text. Optionally the format may contain $version, which will
 # be replaced by the version of the file (if it could be obtained via
 # FILE_VERSION_FILTER)
+# See also: WARN_LINE_FORMAT
 # The default value is: $file:$line: $text.
 
 WARN_FORMAT            = "$file:$line: $text"
 
+# In the $text part of the WARN_FORMAT command it is possible that a reference
+# to a more specific place is given. To make it easier to jump to this place
+# (outside of doxygen) the user can define a custom "cut" / "paste" string.
+# Example:
+# WARN_LINE_FORMAT = "'vi $file +$line'"
+# See also: WARN_FORMAT
+# The default value is: at line $line of file $file.
+
+WARN_LINE_FORMAT       = "at line $line of file $file"
+
 # The WARN_LOGFILE tag can be used to specify a file to which warning and error
 # messages should be written. If left blank the output is written to standard
 # error (stderr). In case the file specified cannot be opened for writing the
@@ -2239,7 +2271,8 @@ SEARCH_INCLUDES        = YES
 
 # The INCLUDE_PATH tag can be used to specify one or more directories that
 # contain include files that are not input files but should be processed by the
-# preprocessor.
+# preprocessor. Note that the INCLUDE_PATH is not recursive, so the setting of
+# RECURSIVE has no effect here.
 # This tag requires that the tag SEARCH_INCLUDES is set to YES.
 
 INCLUDE_PATH           =
@@ -2408,7 +2441,8 @@ CLASS_GRAPH            = YES
 COLLABORATION_GRAPH    = YES
 
 # If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
-# groups, showing the direct groups dependencies.
+# groups, showing the direct groups dependencies. See also the chapter Grouping
+# in the manual.
 # The default value is: YES.
 # This tag requires that the tag HAVE_DOT is set to YES.