diff --git a/cudoku.c b/cudoku.c
index 60ea1ec..07ee19a 100644
--- a/cudoku.c
+++ b/cudoku.c
@@ -91,6 +91,8 @@ void draw_bg_grid_shader(Shader shader, unsigned int vao, float* transform, floa
 
   glBindVertexArray(vao);
   glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
+  glBindVertexArray(0);
 }
 
 void draw_bg_grid_texture(Shader shader, unsigned int vao, unsigned int texture, float* transform) {
@@ -116,10 +118,43 @@ void draw_numbers(Shader shader, unsigned int vao, unsigned int vbo, float *tran
   glBindVertexArray(0);
 }
 
-void draw_win_overlay(Shader shader, unsigned int vao, unsigned int vbo, float *transform) {
+unsigned int prepare_win_overlay() {
+  unsigned int vbo, vao, ebo;
+  glGenVertexArrays(1, &vao);
+  glGenBuffers(1, &vbo);
+  glGenBuffers(1, &ebo);
+
+  glBindVertexArray(vao);
+
+  glBindBuffer(GL_ARRAY_BUFFER, vbo);
+  glBufferData(GL_ARRAY_BUFFER, sizeof(quad_vertices), quad_vertices, GL_STATIC_DRAW);
+
+  glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
+  glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(quad_indices), quad_indices, GL_STATIC_DRAW);
+
+  glEnableVertexAttribArray(0);
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void *)0);
+
+  glBindVertexArray(0);
+
+  return vao;
+}
+
+void draw_win_overlay(Shader win_shader, Shader font_shader, unsigned int vao, unsigned int font_vao, unsigned int font_vbo, float *transform) {
+  use_shader(win_shader);
+
+  set_mat4f(win_shader, "transform", transform);
+  set_vec4f(win_shader, "aColor", 0.0, 0.0, 0.0, 0.8);
+
+  glBindVertexArray(vao);
+
+  glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
+  glBindVertexArray(0);
+
   const char *text = "You won!";
   Size text_size = calculate_text_size(text, 1.0f);
-  draw_text(shader, text, text_size, 1.5f, vao, vbo, transform);
+  draw_text(font_shader, text, text_size, 1.5f, font_vao, font_vbo, transform);
 }
 
 void prepare_selection_box(unsigned int *vao, unsigned int *vbo) {
@@ -142,6 +177,7 @@ void draw_selection_box(Shader shader, unsigned int vao, unsigned int vbo, int x
   use_shader(shader);
 
   set_mat4f(shader, "transform", transform);
+  set_vec4f(shader, "aColor", 0.4, 0.4, 1.0, 0.5);
 
   glBindVertexArray(vao);
 
@@ -196,13 +232,13 @@ void do_selection(Cudoku *game, int x, int y, int width, int height, float x_sca
 }
 
 void set_selected_number(Cudoku *game, int number) {
-  if (game->should_draw_selection) {
+  if (game->should_draw_selection && !game->has_won) {
     game->board[game->selection.x][game->selection.y] = number;
   }
 }
 
 void move_selection(Cudoku *game, int x, int y) {
-  if (game->should_draw_selection) {
+  if (game->should_draw_selection && !game->has_won) {
     game->selection.x += y;
     game->selection.y += x;
 
@@ -221,5 +257,6 @@ void move_selection(Cudoku *game, int x, int y) {
 }
 
 void toggle_selection(Cudoku *game) {
-  game->should_draw_selection = !game->should_draw_selection;
+  if (!game->has_won)
+    game->should_draw_selection = !game->should_draw_selection;
 }
diff --git a/cudoku.h b/cudoku.h
index 07c9891..5a85d57 100644
--- a/cudoku.h
+++ b/cudoku.h
@@ -21,7 +21,8 @@ unsigned int prepare_bg(bool use_texture, unsigned int *texture);
 void draw_bg_grid_shader(Shader shader, unsigned int vao, float* transform, float resolution);
 void draw_bg_grid_texture(Shader shader, unsigned int vao, unsigned int texture, float* transform);
 void draw_numbers(Shader shader, unsigned int vao, unsigned int vbo, float *transform, int board[9][9]);
-void draw_win_overlay(Shader shader, unsigned int vao, unsigned int vbo, float *transform);
+unsigned int prepare_win_overlay();
+void draw_win_overlay(Shader win_shader, Shader font_shader, unsigned int vao, unsigned int font_vao, unsigned int font_vbo, float *transform);
 void prepare_selection_box(unsigned int *vao, unsigned int *vbo);
 void draw_selection_box(Shader shader, unsigned int vao, unsigned int vbo, int x, int y, float *transform);
 void do_selection(Cudoku *game, int x, int y, int width, int height, float x_scale, float y_scale);
diff --git a/font.c b/font.c
index 783a5a1..727b7df 100644
--- a/font.c
+++ b/font.c
@@ -175,7 +175,7 @@ void draw_number(Shader shader, int text, int row, int column, float scale, unsi
 
 void draw_text(Shader shader, const char *text, Size text_size, float scale, unsigned int vao, unsigned int vbo, float *transform) {
   use_shader(shader);
-  set_vec3f(shader, "textColor", 55.f / 255.f, 55.f / 255.f, 55.f / 255.f);
+  set_vec3f(shader, "textColor", 200.f / 255.f, 200.f / 255.f, 200.f / 255.f);
   set_mat4f(shader, "transform", transform);
   glActiveTexture(GL_TEXTURE0);
   glBindVertexArray(vao);
diff --git a/main.c b/main.c
index 7820b32..da28cd1 100644
--- a/main.c
+++ b/main.c
@@ -25,17 +25,32 @@ void handle_keypress(XEvent xev, Cudoku *game) {
     /* reset_board(&game); */
   } else if (XLookupKeysym(&xev.xkey, 0) >= XK_0 && XLookupKeysym(&xev.xkey, 0) <= XK_9) {
     set_selected_number(game, XLookupKeysym(&xev.xkey, 0) - XK_0);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_BackSpace || XLookupKeysym(&xev.xkey, 0) == XK_Delete) {
+  } else if (XLookupKeysym(&xev.xkey, 0) == XK_BackSpace ||
+      XLookupKeysym(&xev.xkey, 0) == XK_Delete) {
     set_selected_number(game, 0);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_Left || XLookupKeysym(&xev.xkey, 0) == XK_a || XLookupKeysym(&xev.xkey, 0) == XK_h) {
+  } else if (
+      XLookupKeysym(&xev.xkey, 0) == XK_Left ||
+      XLookupKeysym(&xev.xkey, 0) == XK_a ||
+      XLookupKeysym(&xev.xkey, 0) == XK_h) {
     move_selection(game, -1, 0);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_Right || XLookupKeysym(&xev.xkey, 0) == XK_d || XLookupKeysym(&xev.xkey, 0) == XK_l) {
+  } else if (
+      XLookupKeysym(&xev.xkey, 0) == XK_Right ||
+      XLookupKeysym(&xev.xkey, 0) == XK_d ||
+      XLookupKeysym(&xev.xkey, 0) == XK_l) {
     move_selection(game, 1, 0);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_Up || XLookupKeysym(&xev.xkey, 0) == XK_w || XLookupKeysym(&xev.xkey, 0) == XK_k) {
+  } else if (
+      XLookupKeysym(&xev.xkey, 0) == XK_Up ||
+      XLookupKeysym(&xev.xkey, 0) == XK_w ||
+      XLookupKeysym(&xev.xkey, 0) == XK_k) {
     move_selection(game, 0, -1);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_Down || XLookupKeysym(&xev.xkey, 0) == XK_s || XLookupKeysym(&xev.xkey, 0) == XK_j) {
+  } else if (
+      XLookupKeysym(&xev.xkey, 0) == XK_Down ||
+      XLookupKeysym(&xev.xkey, 0) == XK_s ||
+      XLookupKeysym(&xev.xkey, 0) == XK_j) {
     move_selection(game, 0, 1);
-  } else if (XLookupKeysym(&xev.xkey, 0) == XK_Return || XLookupKeysym(&xev.xkey, 0) == XK_space) {
+  } else if (
+      XLookupKeysym(&xev.xkey, 0) == XK_Return ||
+      XLookupKeysym(&xev.xkey, 0) == XK_space) {
     toggle_selection(game);
   /* } else if (XLookupKeysym(&xev.xkey, 0) == XK_n) { */
   /*   new_board(&game); */
@@ -121,6 +136,9 @@ int main(int argc, char *argv[]) {
   unsigned int selection_vao, selection_vbo;
   prepare_selection_box(&selection_vao, &selection_vbo);
 
+  Shader win_shader = create_shader("shaders/board_v.vert", "shaders/quad.frag");
+  unsigned int win_vao = prepare_win_overlay();
+
   srand(time(NULL));
 
   for (int i = 0; i < 9; i++) {
@@ -148,7 +166,8 @@ int main(int argc, char *argv[]) {
         }
 
       } else if (xev.type == KeyPress) {
-        if (XLookupKeysym(&xev.xkey, 0) == XK_Escape || XLookupKeysym(&xev.xkey, 0) == XK_q) {
+        if (XLookupKeysym(&xev.xkey, 0) == XK_Escape ||
+            (XLookupKeysym(&xev.xkey, 0) == XK_q && xev.xkey.state & ControlMask)) {
           quit = true;
           break;
         } else {
@@ -179,12 +198,18 @@ int main(int argc, char *argv[]) {
       draw_bg_grid_texture(grid_shader, board_vao, grid_texture, (float *)transform);
 
     if (game.should_draw_selection)
-      draw_selection_box(selection_shader, selection_vao, selection_vbo, game.selection.x, game.selection.y, (float *)transform);
+      draw_selection_box(
+          selection_shader,
+          selection_vao,
+          selection_vbo,
+          game.selection.x,
+          game.selection.y,
+          (float *)transform);
 
     draw_numbers(font_shader, font_vao, font_vbo, (float *)transform, game.board);
 
     if (game.has_won) {
-      draw_win_overlay(font_shader, font_vao, font_vbo, (float *)transform);
+      draw_win_overlay(win_shader, font_shader, win_vao, font_vao, font_vbo, (float *)transform);
     }
 
     glXSwapBuffers(display, window);
diff --git a/shader.c b/shader.c
index 12e0c8d..418e7f9 100644
--- a/shader.c
+++ b/shader.c
@@ -91,3 +91,8 @@ void set_vec3f(Shader shader, const char *name, float val1, float val2, float va
   int loc = glGetUniformLocation(shader.program, name);
   glUniform3f(loc, val1, val2, val3);
 }
+
+void set_vec4f(Shader shader, const char *name, float val1, float val2, float val3, float val4) {
+  int loc = glGetUniformLocation(shader.program, name);
+  glUniform4f(loc, val1, val2, val3, val4);
+}
diff --git a/shader.h b/shader.h
index e46bc26..e17db7f 100644
--- a/shader.h
+++ b/shader.h
@@ -10,3 +10,4 @@ void use_shader(Shader shader);
 void set_mat4f(Shader shader, const char *name, float *mat);
 void set_float(Shader shader, const char *name, float val);
 void set_vec3f(Shader shader, const char *name, float val1, float val2, float val3);
+void set_vec4f(Shader shader, const char *name, float val1, float val2, float val3, float val4);
diff --git a/shaders/quad.frag b/shaders/quad.frag
index e774429..e57a174 100644
--- a/shaders/quad.frag
+++ b/shaders/quad.frag
@@ -1,7 +1,8 @@
 #version 330 core
 
 out vec4 FragColor;
+uniform vec4 aColor;
 
 void main() {
-  FragColor = vec4(0.4, 0.4, 1.0, 0.5);
+  FragColor = vec4(aColor);
 }