The zip files with image inserted into the applet name must be extracted into an "images" subdirectory placed inside a directory with the name of the apple,in order for the applet to work correctly. 

For example - if you are to extract the satellite.zip file, extract the files into a directory called "satellite". Inside this directory create another directory called "images" and then extract the satimages.zip files into this directory.

The applets for which this applies are;
blindspeed, satellite, vswr and wheel.