When I boot my 2015 iMac running OS X Yosemite 10.10.5 a small window opens in the upper left side of the display. The top of the menu bar in the window says "segment-left-yellow.png - Locked". There is a yellow color swatch displayed in the center of the window. I can close the window by clicking on the red "x" dot in the menu bar.
The segment-left-yellow.png window launches every time I book the computer. It doesn't seem cause any performance problems. It's just annoying.
The code that is causing this was introduced several months ago. I was alerted by Drive Genius 4 which identified the addition of the code to start daemons. Unfortunately, I did not delete the code ... I didn't know what it was or what it would do. How do I display the list of start daemons so I can find that code and remove it?