Then, on the same top menu click on EDIT and pull down to STROKE (OUTLINE) SELECTION. Here's a screenshot.
|Notice the selected border.|
|This is the SELECTION box.|
-Width-how many pixels wide do you want your border. Between 10px and 15px makes a nice border.
-Colour-If you click on this box it will open up the colour dialog box.
|Choose your colour.|
To have a border that matches your graphic you can use the eyedropper tool to Select a colour. I used the eyedropper tool to choose the colour of the girl. If you do this you can ignore the colour menu. (just cancel)
-Blending MODE- Just leave it at Normal. There is a pull down menu here, but don't worry about that now.
-Opacity-Pay attention to this. You want it to be at 100% for a solid border.
-Transparency- Make sure it is unchecked.
Click on OK.
Then to get rid of the marching ants, go to the SELECT menu at top of page and choose DESELECT from the drop down menu. Or you can use Command-d
|Matching, solid border.|