minor changes and added namespace to avoid conflicts when integrating with PanoPainter

engine/image.cpp

@@ -4,9 +4,11 @@
 
 #include <stb/stb_image.h>
 
+using namespace ui;
+
 bool Image::load(std::string filename)
 {
-    //stbi_set_flip_vertically_on_load(true);
+    stbi_set_flip_vertically_on_load(false);
     Asset file;
     if (!(file.open(filename.c_str()) && file.read_all()))
     {