Some UI refinements for OUTSIDE PARTIES for #Playdate...

As this GIF shows, I've added to the spooky "glitches" using the SDK's "vcrPauseFilterImage()," which runs fast and looks neat. Other random glitches include simple streaks of noise and sudden brief flashes of... things. Audio will add a lot later on.

The visual feel on hardware is somewhere between spooky found footage, a hazy ultrasound scan, and an old daguerreotype. If I can achieve a shortwave "numbers station" feel for the sound, I'll be happy!

The "Signal Log" (list of items to find) now marks found signals with a crosshair icon, while non-found signals get a "?"—or a number, if multiple instances are to be tracked down. The number decreases as you find them. Each signal is listed by its final words, which are likely to contain the most useful clues. The selected one (up/down moves the "A" badge) also gets a full-text ticker at the bottom. Hit "A" to confirm it as the signal to search for, or "B" to revert to the previously-selected signal.