diff --git a/src/io/window.c b/src/io/window.c
index 830c669..6eb7021 100644
--- a/src/io/window.c
+++ b/src/io/window.c
@@ -2,6 +2,10 @@
 // Licensed under the MIT Licence. See LICENSE for details
 #include "window.h"
 
+#include <stdio.h>
+
+#include "../error.h"
+
 // include before GLFW
 #define GLAD_GL_IMPLEMENTATION
 #include <glad/gl.h>
@@ -21,22 +25,37 @@
 static GLFWwindow* win = NULL;
 
 int window_init(void) {
+#ifndef NDEBUG
+	glfwWindowHint(GLFW_CONTEXT_DEBUG, GLFW_TRUE);
+#endif
+
 	// initialize the window
 	glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
 	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // sets the profile to "core", so old, deprecated functions are disabled.
 	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
+	glfwWindowHint(GLFW_RED_BITS, 8);
+	glfwWindowHint(GLFW_GREEN_BITS, 8);
+	glfwWindowHint(GLFW_BLUE_BITS, 8);
+	glfwWindowHint(GLFW_ALPHA_BITS, 0);
 	win = glfwCreateWindow(WIN_DEFAULT_WIDTH, WIN_DEFAULT_HEIGHT, WIN_NAME, NULL, NULL);
 	if (!win) return 1;
 
+	// setup OpenGL
+	glfwMakeContextCurrent(win);
+	if (!gladLoadGL(glfwGetProcAddress)) return 1;
+
 	// configure callbacks
 	glfwSetKeyCallback(win, key_callback);
 	glfwSwapInterval(1); // wait 1 screen update for a redraw a.k.a. "vsync". (not really applicable in this case but eh)
 
-	// setup OpenGL
-	glfwMakeContextCurrent(win);
-	if (!gladLoadGL(glfwGetProcAddress)) return 1;
+	// print the OpenGL version information
+	debug("version info:");
+	debug("\tvendor:       %s", glGetString(GL_VENDOR));
+	debug("\trenderer:     %s", glGetString(GL_RENDERER));
+	debug("\tversion:      %s", glGetString(GL_VERSION));
+	debug("\tshading lang: %s", glGetString(GL_SHADING_LANGUAGE_VERSION));
 
 	return 0;
 }