diff --git a/src/debug.hpp b/src/debug.hpp
index 2d499cb..190d7f0 100644
--- a/src/debug.hpp
+++ b/src/debug.hpp
@@ -1,6 +1,6 @@
 /*  This file is part of identiconpp.
  *  Copyright © 2018 tastytea <tastytea@tastytea.de>
- *                                                                   
+ *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, version 3.
diff --git a/src/identiconpp.cpp b/src/identiconpp.cpp
index 90a6838..54899b8 100644
--- a/src/identiconpp.cpp
+++ b/src/identiconpp.cpp
@@ -145,7 +145,7 @@ Magick::Color Identiconpp::get_color(const uint16_t firstbit,
     // std::stringstream does not support writing into uint16_t
     unsigned short bits;
     ss >> bits;
-    
+
     // Shift an one $colorbits times to the left, substract 1. This leaves us
     //  with $colorbits ones. Then AND bits and our ones to keep only as many
     //  bits as we need.
diff --git a/src/identiconpp.hpp b/src/identiconpp.hpp
index e148671..5f34ac0 100644
--- a/src/identiconpp.hpp
+++ b/src/identiconpp.hpp
@@ -73,7 +73,7 @@ public:
      *  @param  background  Background color, hexadecimal, rrggbbaa
      *  @param  foreground  vector of foreground colors
      *  @param  padding     Padding in pixels { left & right, top & down }
-     *  
+     *
      *  @since  before 0.5.0
      */
     explicit Identiconpp(const uint8_t columns, const uint8_t rows,
@@ -126,7 +126,7 @@ private:
      *  @param  digest  The pre-computed digest
      *
      *  @return The image
-     *  
+     *
      *  @since  before 0.5.0
      */
     Magick::Image generate_ltr_symmetric(const string &digest);
@@ -141,7 +141,7 @@ private:
      *  @param  digest  The pre-computed digest
      *
      *  @return The image
-     *  
+     *
      *  @since  before 0.5.0
      */
     Magick::Image generate_ltr_asymmetric(const string &digest);
@@ -156,7 +156,7 @@ private:
      *  @param  digest  The pre-computed digest
      *
      *  @return The image
-     *  
+     *
      *  @since  before 0.5.0
      */
     Magick::Image generate_sigil(const string &digest);
@@ -168,7 +168,7 @@ private:
      *
      *  @param  digest  The pre-computed digest
      *  @param  type    The type of identicon
-     *  
+     *
      *  @since  before 0.5.0
      */
     void check_entropy(const string &digest, algorithm type);
@@ -180,7 +180,7 @@ private:
      *  @param  digest  The digest
      *
      *  @return The bit.
-     *  
+     *
      *  @since  before 0.5.0
      */
     bool get_bit(const uint16_t bit, const string &digest);
@@ -194,7 +194,7 @@ private:
      *  @param  digest    The digest
      *
      *  @return A foreground color.
-     *  
+     *
      *  @since  before 0.5.0
      */
     Magick::Color get_color(const uint16_t firstbit, const string &digest);
@@ -205,7 +205,7 @@ private:
      *  @param  c       Character to check
      *
      *  @return true if not hex.
-     *  
+     *
      *  @since  before 0.5.0
      */
     static bool not_hex(const char c);
@@ -214,7 +214,7 @@ private:
      *  @brief  Performs checks on a color definition in a string.
      *
      *  @param  color   The color as string
-     *  
+     *
      *  @since  before 0.5.0
      */
     void check_color(const string &color);
diff --git a/src/identiconpp_c.h b/src/identiconpp_c.h
index 74e646a..e704087 100644
--- a/src/identiconpp_c.h
+++ b/src/identiconpp_c.h
@@ -61,7 +61,7 @@ extern "C"
      *  @param  padding         Padding in pixels { left & right, top & down }
      *
      *  @return false on error, true otherwise.
-     *  
+     *
      *  @since  before 0.5.0
      */
     bool identiconpp_setup(const uint8_t columns, const uint8_t rows,
@@ -79,7 +79,7 @@ extern "C"
      *  @param  width   The width of the identicon
      *
      *  @return Length of the generated base64-string, or 0 on error.
-     *  
+     *
      *  @since  before 0.5.0
      */
     uint64_t identiconpp_generate(const char magick[],