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[ FIRST WE WILL CREATE OUR KEY.PNG USING PYTHON ]
pip install --break-system-packages pillow
micro key.py
from PIL import Image
import numpy
z = numpy.random.rand(512,512,3)*255
i = Image.fromarray(z.astype('uint8')).convert('RGBA')
i.save('key.png')
[ FIRST 512 = HEIGHT ]
[ SECOND 512 = WIDTH ]
[ YOU CAN CHANGE IF YOU WANT TO ...]
[ AFTER THAT WE WILL CREATE OUR SECRET.PNG USING GIMP ]
[ OPEN GIMP ] > [ FILE ] > [ NEW ] > [ SET H AND W = 512 ]
[ SET BG = BLACK ] [ SET TXT = WHITE ]
[ AFTER THAT ]
[ SET BG = WHITE ] [ SET TXT = BLACK ]
[ NOW OPEN AS LAYERS > KEY.PNG ]
[ SET MODE = DIFFERENCE ]
[ NOW ITS TIME TO EXPORT AS ... ]