#    grid_size_x grid_size_y
grid          40          40

#      index    x    y type   r   g   b
device     0    0    0    1 255   0   0
device     1  500  500    3 255 255   0
device     2 1000  500    2   0 255   0
device     3    0 1000    3   0 255   0
device     4  500 1000    0 255 255   0
device     5 1000 1000    2   0 255   0
device     6  500 1500    4 255 255   0

#         from to   r   g   b
data_line    0  1 255   0   0
data_line    1  3   0 255   0
data_line    2  1 255 255   0
data_line    3  0   0 255   0
data_line    3  4 255 255   0
data_line    4  6 255 255   0
data_line    5  4 255 255   0

