Update BuildSprite for PPU and default pivot

Author: IExploitableMan

src/SpriteLoader.cs

@@ -438,12 +438,17 @@ private static Sprite GetSpriteForTile(Sprite sprite, Tile tile, string name, in
 			return sprite;
 		}
 
-		public static Sprite BuildSprite(byte[] data, Vector2 pivot)
+		public static Sprite BuildSprite(byte[] data, Vector2? pivot = null, float pixelsPerUnit = 256f)
 		{
 			Texture2D texture = new(1, 1);
 			texture.filterMode = FilterMode.Trilinear;
 			texture.LoadImage(data);
-			return Sprite.Create(texture, new(0, 0, texture.width, texture.height), pivot, 2112);
+			return Sprite.Create(
+				texture, 
+				new(0, 0, texture.width, texture.height), 
+				pivot ?? new(0.5f, 0.5f), 
+				pixelsPerUnit
+			);
 		}
 
 		internal static void Init()

src/Visual.cs

@@ -31,7 +31,7 @@ private static void StartScreen_Start()
             button.GetComponentInChildren<TMPLocalizer>().Text = "PolyMod Discord";
             Transform iconContainer = button.transform.Find("IconContainer");
             iconContainer.GetComponentInChildren<Image>().sprite
-                = SpritesLoader.BuildSprite(Plugin.GetResource("discord_icon.png").ReadBytes(), new Vector2(.5f, .5f));
+                = SpritesLoader.BuildSprite(Plugin.GetResource("discord_icon.png").ReadBytes());
             iconContainer.localScale = new Vector3(0.55f, 0.6f, 0);
             iconContainer.position -= new Vector3(0, 4, 0);