Fix Windows Compiling

Author: Raltyro

source/funkin/backend/system/macros/Macros.hx

@@ -115,12 +115,12 @@ class Macros {
 			default:
 		}
 
-		fields.push({name: 'allowCompressedTextures', access: [APublic, AStatic], pos: pos, kind: FProp("get", "set", macro :Null<Bool>), meta: [{pos: pos, name: ":isVar"}]});
+		fields.push({name: 'allowCompressedTextures', access: [APublic, AStatic], pos: pos, kind: FProp("get", "set", macro :Bool), meta: [{pos: pos, name: ":isVar"}]});
 
 		fields.push({name: "get_allowCompressedTextures", access: [APublic, AStatic, AInline], pos: pos, kind: FFun({ret: macro :Bool, args: [], expr: macro {
 			return allowCompressedTextures != null ? allowCompressedTextures : !funkin.backend.system.Main.forceGPUOnlyBitmapsOff && funkin.options.Options.gpuOnlyBitmaps;
 		}})});
-		fields.push({name: "set_allowCompressedTextures", access: [APublic, AStatic, AInline], pos: pos, kind: FFun({ret: macro :Bool, args: [{name: "value", type: macro :Bool}], expr: macro {
+		fields.push({name: "set_allowCompressedTextures", access: [APublic, AStatic, AInline], pos: pos, kind: FFun({ret: macro :Null<Bool>, args: [{name: "value", type: macro :Bool}], expr: macro {
 			allowCompressedTextures = value;
 			return get_allowCompressedTextures();
 		}})});