/usr/share/gwyddion/gradients/Plum 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 | Gwyddion resource GwyGradient
0.000000 0.000000 0.000000 0.000000 1.000000
0.250000 0.342401 0.066642 0.383000 1.000000
0.500000 0.494232 0.477970 0.823529 1.000000
0.750000 0.237372 0.614950 0.906000 1.000000
1.000000 1.000000 1.000000 1.000000 1.000000
|