titlescreen.bin: titlescreen.png
    convert565 $< $@

titlescreen.o: titlescreen.bin
    objcopy -O elf32 -I binary --rename-section .data=.rodata,alloc,load,readonly,data,contents $< $@

foo.g3a: main.o titlescreen.o

# Refer to the contents of titlescreen.bin as a region of memory, like an array:
# extern const char *_binary_titlescreen_bin_start;
# extern const char *_binary_titlescreen_bin_end;