Great tool, so thanks.  Two simple suggestions, if I may

1.  Would it be possible to only show the icon in the sys tray?  I have enough icons on my tool bar. 

2.  Add an option to display a small cross hair or dot in the middle of display area to indicate where your mouse pointer is located.  I do a lot of graphics work at the pixel level and this would make it easier to know exactly what I was clicking on