Enter some SysEx Display Bitmap data:

Every 16 HEX bytes, after the first 6, form a "Chunk".
Each chunk represents a 7x16 grid. There are three chunks.
(The last chunk's values go up to 60 instead of 7F, because it only covers a 2x16 area.)
* Each HEX Byte in a chunk corresponds to a Y-Level.
* By converting one HEX Byte in a chunk to decimal, and then to binary, you get 7 bits.
If the bit is "1", we can say the pixel is "On".
Example: 7F (HEX) → 127 (Decimal) → 1111111 (Binary)
* After each "chunk", new pixels are placed 7 spots closer to the right.