Hello; the images used by both the sprites and the background tiles are both located on the "images" section of the JSON, structured as an object whose keys are the names of the images and whose values are tridimensional arrays containing the pixels of the image, the first dimensional being the frames, the second being the rows, and the third being the columns:
"images": {
"TIL_a": [
[
[1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 1, 1, 0, 0, 1],
[1, 0, 0, 1, 1, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1]
]
],
"TIL_b": [
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 0, 1, 1, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 0, 1, 1, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 0, 1, 1, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 0, 1, 1, 0, 0]
],
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 0, 1, 1, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 0, 1, 1, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 1, 0, 1, 1, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 0, 1, 1, 0]
]
],
"TIL_c": [
[
[0, 0, 1, 1, 1, 1, 1, 0],
[0, 1, 0, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 1, 0],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 1, 0],
[0, 1, 0, 0, 0, 0, 0, 1],
[0, 0, 1, 1, 1, 1, 1, 0]
]
],
"TIL_d": [
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[1, 1, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 0, 1, 0, 0, 0, 1],
[1, 0, 0, 1, 1, 0, 1, 1],
[1, 1, 0, 1, 1, 0, 1, 1],
[0, 0, 0, 0, 0, 0, 0, 0]
]
],
"SPR_A": [
[
[0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 1, 1, 1, 1, 1, 1, 0],
[1, 0, 1, 1, 1, 1, 0, 1],
[0, 0, 1, 0, 0, 1, 0, 0],
[0, 0, 1, 0, 0, 0, 0, 0]
],
[
[0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 1, 0, 0, 0],
[1, 0, 0, 1, 1, 0, 0, 1],
[0, 1, 1, 1, 1, 1, 1, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 0, 1, 0, 0, 1, 0, 0],
[0, 0, 0, 0, 0, 1, 0, 0]
]
],
"SPR_a": [
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 1, 0, 0, 0, 1],
[0, 1, 1, 1, 0, 0, 0, 1],
[0, 1, 1, 1, 0, 0, 1, 0],
[0, 1, 1, 1, 1, 1, 0, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 0, 1, 0, 0, 1, 0, 0]
],
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 1, 0, 1, 0, 0, 0, 0],
[0, 1, 1, 1, 0, 0, 0, 1],
[0, 1, 1, 1, 0, 0, 0, 1],
[0, 1, 1, 1, 0, 0, 1, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 1, 0, 0, 0, 0, 1, 0]
]
],
"SPR_b": [
[
[0, 0, 0, 0, 0, 0, 0, 1],
[0, 0, 0, 0, 0, 0, 0, 1],
[0, 0, 0, 0, 0, 0, 0, 1],
[0, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 1]
]
],
"ITM_0": [
[
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 1, 1, 1, 1, 0, 0],
[0, 1, 1, 0, 0, 1, 0, 0],
[0, 0, 1, 0, 0, 1, 0, 0],
[0, 0, 0, 1, 1, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0]
]
]
}