Every array in hdy_led_matrix_statics.c, played at its own frame rate. A clip used by a
layer in hdy_led_matrix_layers.c plays the way that layer plays it: once, a set number of times, or
looping until the layer is removed. A one-shot clip on a layer with a set duration holds its last frame until
that runs out; otherwise its layer is deleted when it ends and the panel goes dark.
No clip data in this page. Open it with tools/led_matrix_preview/preview.sh,
which fills in the current arrays.
Each LED is drawn from the array's value the way hdyGfxExtractFrameFromHdyMedia uses it: at
7 bpp the value ×2 is the PWM duty, shown here as linear light, so dim edge pixels read the way they do on the panel.
Clip sources are in components/hdy_led_matrix/media; rerun this preview after convert.sh.