--- a/CMakeLists.txt	Sat Jun 14 09:58:58 2014 +0300
+++ b/CMakeLists.txt	Sat Jun 14 19:41:09 2014 +0300
@@ -9,6 +9,8 @@
 find_package (Qt4 REQUIRED)
 find_package (OpenGL REQUIRED)
 
+option (TRANSPARENT_DIRECT_COLORS "Enables non-standard transparent direct colors" OFF)
+
 get_target_property (UPDATEREVISION_EXE updaterevision LOCATION)
 
 add_custom_target (revision_check ALL
@@ -105,6 +107,10 @@
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x -W -Wall")
 set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lGLU")
 
+if (TRANSPARENT_DIRECT_COLORS)
+	set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTRANSPARENT_DIRECT_COLORS")
+endif()
+
 # With clang, we need to set -Wno-deprecated since Qt headers seem to use the
 # register keyword which clang doesn't seem to like. It also appears that Qt
 # doesn't set Q_COMPILER_INITIALIZER_LISTS when compiling with clang? What's