/usr/share/gwyddion/gradients/BW1 is in gwyddion-common 2.47-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | Gwyddion resource GwyGradient
0 1 1 1 1
0.111111 0 0 0 1
0.222222 1 1 1 1
0.333333 0 0 0 1
0.444444 1 1 1 1
0.555556 0 0 0 1
0.666667 1 1 1 1
0.777778 0 0 0 1
0.888889 1 1 1 1
1 0 0 0 1
|