void initGraphics(Graphics g, Color textColor, Color defaultColor) {
   if (smallFont == null) {
     smallFont = new Font("SansSerif", Font.PLAIN, 9);
     largeFont = new Font("SansSerif", Font.PLAIN, 12);
   }
   if (textColor != null) {
     labelColor = textColor;
     if (overlay != null && overlay.getDrawBackgrounds())
       bgColor =
           new Color(
               255 - labelColor.getRed(), 255 - labelColor.getGreen(), 255 - labelColor.getBlue());
     else bgColor = null;
   } else {
     int red = defaultColor.getRed();
     int green = defaultColor.getGreen();
     int blue = defaultColor.getBlue();
     if ((red + green + blue) / 3 < 128) labelColor = Color.white;
     else labelColor = Color.black;
     bgColor = defaultColor;
   }
   this.defaultColor = defaultColor;
   g.setColor(defaultColor);
 }
 protected void setDrawingColor(int ox, int oy, boolean setBackground) {
   // IJ.log("setDrawingColor: "+setBackground+this);
   int type = imp.getType();
   int[] v = imp.getPixel(ox, oy);
   switch (type) {
     case ImagePlus.GRAY8:
       {
         if (setBackground) setBackgroundColor(getColor(v[0]));
         else setForegroundColor(getColor(v[0]));
         break;
       }
     case ImagePlus.GRAY16:
     case ImagePlus.GRAY32:
       {
         double min = imp.getProcessor().getMin();
         double max = imp.getProcessor().getMax();
         double value = (type == ImagePlus.GRAY32) ? Float.intBitsToFloat(v[0]) : v[0];
         int index = (int) (255.0 * ((value - min) / (max - min)));
         if (index < 0) index = 0;
         if (index > 255) index = 255;
         if (setBackground) setBackgroundColor(getColor(index));
         else setForegroundColor(getColor(index));
         break;
       }
     case ImagePlus.COLOR_RGB:
     case ImagePlus.COLOR_256:
       {
         Color c = new Color(v[0], v[1], v[2]);
         if (setBackground) setBackgroundColor(c);
         else setForegroundColor(c);
         break;
       }
   }
   Color c;
   if (setBackground) c = Toolbar.getBackgroundColor();
   else {
     c = Toolbar.getForegroundColor();
     imp.setColor(c);
   }
   IJ.showStatus("(" + c.getRed() + ", " + c.getGreen() + ", " + c.getBlue() + ")");
 }
 private void setBackgroundColor(Color c) {
   Toolbar.setBackgroundColor(c);
   if (Recorder.record)
     Recorder.record("setBackgroundColor", c.getRed(), c.getGreen(), c.getBlue());
 }