Code for Dot Matrix custom icons

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hey everybody,
i've connected max7219 dot matrix display arduino. code need show custom icons, not regular ascii symbols. want skip 7 icons simpel pushbutton.
i've tried lot of example sketches, cannot understand them enough change them purpose.

thanks bunch.

make chart this, used excel, , translate icon 1s & 0s. send these bytes max72319 display.
using hex format makes easy keep program size smaller.
can use binary format: 0b00000001 vs 0x01, 0b01000001 vs 0x41, etc.


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