attempt to set ui scale on sketch startup (working on #378)

core/src/processing/core/PApplet.java

@@ -10181,6 +10181,17 @@ public class PApplet implements PConstants {
       uncaughtThrowable = e;
     });
 
+    if (platform == WINDOWS) {
+      // Set DPI scaling to either 1 or 2, but avoid fractional versions like
+      // 125% and 250% that make things look gross, or even 300% since that
+      // is not even a thing.
+      int dpi = java.awt.Toolkit.getDefaultToolkit().getScreenResolution();
+      System.out.println("dpi came back " + dpi);
+      int scaleFactor = constrain(dpi / 96, 1, 2);
+      System.out.println("setting scale factor to " + scaleFactor);
+      System.setProperty("sun.java2d.uiscale", String.valueOf(scaleFactor));
+    }
+
     // This doesn't work, need to mess with Info.plist instead
     /*
     // In an exported application, add the Contents/Java folder to the