diff -r 2ea35c5f4760 -r e22abcd22e47 test/snake/snake.c
--- a/test/snake/snake.c	Fri Aug 01 18:18:57 2025 +0200
+++ b/test/snake/snake.c	Fri Aug 01 18:19:33 2025 +0200
@@ -33,17 +33,19 @@
 #include <cx/printf.h>
 
 enum Textures2d {
-    TEX_SHIP = 0,
+    TEX_PLAYER = 0,
     TEX_BACKDROP,
     TEX2D_COUNT
 };
 static AscTexture tex2d[TEX2D_COUNT];
-#define TEXTURE_SHIP &tex2d[TEX_SHIP]
+#define TEXTURE_PLAYER &tex2d[TEX_PLAYER]
 #define TEXTURE_BACKDROP &tex2d[TEX_BACKDROP]
 
 #define BACKDROP_SCENE asc_window_scene(0)
 #define MAIN_SCENE asc_window_scene(1)
 
+#define HUD_WIDTH 400
+
 enum MoveDirection {
     MOVE_UP,
     MOVE_LEFT,
@@ -66,7 +68,7 @@
 } Player;
 
 static const unsigned game_field_size = 16;
-static const unsigned game_field_tile_size = 32;
+static const unsigned game_field_tile_size = 64;
 
 static void globals_init(void) {
     asc_transform_identity(rotations[MOVE_UP]);
@@ -85,7 +87,7 @@
 
 static void textures_init(void) {
     asc_texture_init_2d(tex2d, TEX2D_COUNT);
-    asc_texture_from_file(TEXTURE_SHIP, "ship.png");
+    asc_texture_from_file(TEXTURE_PLAYER, "player.png");
     asc_texture_from_file(TEXTURE_BACKDROP, "backdrop.png");
     asc_gl_context_add_cleanup_func(asc_active_glctx, textures_destroy);
 }
@@ -100,9 +102,11 @@
 }
 
 static void backdrop_create(void) {
+    const float scale = asc_active_window->ui_scale;
     AscSceneNode *node = asc_sprite(
         .texture = TEXTURE_BACKDROP,
         .texture_scale_mode = ASC_TEXTURE_SCALE_REPEAT,
+        .texture_scale_x = scale, .texture_scale_y = scale,
     );
     asc_behavior_add(node, .func = backdrop_scale);
     asc_scene_add_node(BACKDROP_SCENE, node);
@@ -214,7 +218,7 @@
 static Player *player_create(void) {
     AscSceneNode *sprite = asc_sprite(
         .name = "Player",
-        .texture = TEXTURE_SHIP,
+        .texture = TEXTURE_PLAYER,
         .width = game_field_tile_size,
         .height = game_field_tile_size,
         .origin_x = game_field_tile_size / 2,
@@ -250,10 +254,10 @@
 static asc_rect main_scene_viewport_update(asc_vec2u window_size) {
 
     // margins
-    const unsigned margin = 10;
+    const unsigned margin = 16;
 
     // space for score, power-ups, etc.
-    const unsigned left_area = (unsigned) (asc_active_window->ui_scale*200);
+    const unsigned left_area = (unsigned) (asc_active_window->ui_scale*HUD_WIDTH);
 
     // calculate how many pixels need to be removed from width and height
     const unsigned rw = 2*margin + left_area;
@@ -300,8 +304,9 @@
     asc_window_settings_init_defaults(&settings);
     asc_window_initialize(0, &settings);
     asc_window_set_title(0, "Snake");
-    float ui_scale = asc_ui_scale_auto();
-    asc_window_set_size(0, ASC_VEC2U(700+ui_scale*200, 700));
+    asc_window_set_size(0, asc_vec2_ftou(
+        asc_vec2f_scale(ASC_VEC2F(1024+HUD_WIDTH, 1024), asc_ui_scale_auto())));
+    asc_window_center(0);
 
     // load textures
     textures_init();