Updated to joker sprite to use the new one by @GreenNinja2525 and changed the way switching backgrounds works to prevent flicker

source/game.c

@@ -150,7 +150,7 @@ static const Rect POP_MENU_ANIM_RECT        = {9,       7,      24,     31 };
 
 static const Rect SINGLE_BLIND_SELECT_RECT = { 9,       7,      13,     32 };
 
-static const Rect HAND_BG_RECT_SELECTING    = {9,       11,     24,     15 };
+static const Rect HAND_BG_RECT_SELECTING    = {9,       11,     24,     18 };
 // TODO: Currently unused, remove?
 //static const Rect HAND_BG_RECT_PLAYING      = {9,       14,     24,     18 };
 
@@ -418,6 +418,17 @@ void change_background(int id)
         return;
     }
     else if (id == BG_ID_CARD_SELECTING)
+    {
+        if (background == BG_ID_CARD_PLAYING)
+        {
+            for (int i = 0; i <= 2; i++)
+            {
+                main_bg_se_move_rect_1_tile_vert(HAND_BG_RECT_SELECTING, SE_UP);
+            }
+
+            tte_erase_rect_wrapper(HAND_SIZE_RECT_PLAYING);
+        }
+        else
         {
             REG_DISPCNT |= DCNT_WIN0; // Enable window 0 to make hand background transparent
             // Load the tiles and palette
@@ -444,6 +455,7 @@ void change_background(int id)
             memset16(&pal_bg_mem[16], blind_get_color(current_blind, BLIND_BACKGROUND_SECONDARY_COLOR_INDEX), 1);
             memset16(&pal_bg_mem[5], blind_get_color(current_blind, BLIND_BACKGROUND_SHADOW_COLOR_INDEX), 1);
         }
+    }
     else if (id == BG_ID_CARD_PLAYING)
     {
         if (background != BG_ID_CARD_SELECTING)
@@ -452,19 +464,16 @@ void change_background(int id)
             background = BG_ID_CARD_PLAYING;
         }
 
-        Rect curr_hand_bg_rect = HAND_BG_RECT_SELECTING;
         for (int i = 0; i <= 2; i++)
         {
-            main_bg_se_move_rect_1_tile_vert(curr_hand_bg_rect, SE_DOWN);
+            main_bg_se_move_rect_1_tile_vert(HAND_BG_RECT_SELECTING, SE_DOWN);
-            curr_hand_bg_rect.top++;
-            curr_hand_bg_rect.bottom++;
         }
 
         tte_erase_rect_wrapper(HAND_SIZE_RECT_SELECT);
     }
     else if (id == BG_ID_ROUND_END)
     {
-        if (background != BG_ID_CARD_SELECTING)
+        if (background != BG_ID_CARD_SELECTING || background != BG_ID_CARD_PLAYING)
         {
             change_background(BG_ID_CARD_SELECTING);
             background = BG_ID_ROUND_END;