I'm a developer and use a framework called "JUCE," and the associated application with JUCE is the Projucer. Projucer uses .jucer files. Previously, the app icon would show up inline with the file name, much as a Word .doc has a little graphic next to the filename. I'm unsure of what changed, but all I see is a blank page, instead of the app icon. This has stumped me for months. Any suggestions?