-set style line 1 lc rgb '#0060ad' lt 1 lw 2 pt 1 ps 1.5 # --- blue
-set style line 2 lc rgb '#dd181f' lt 1 lw 2 pt 5 ps 1.5 # --- red
-set style line 3 lc rgb '#dd181f' lt 1 lw 2 pt 7 ps 1.5 # --- red
+set style line 1 lc rgb '#000c16' lt 1 lw 2 pt 1 ps 1.5 # --- blue
+set style line 2 lc rgb '#000c16' lt 1 lw 2 pt 5 ps 1.5 # --- red
+set style line 3 lc rgb '#000c16' lt 1 lw 2 pt 7 ps 1.5 # --- red
plot'openMP-GPU.txt' index 0 using 1:5 t "OpenMP 1 core" with linespoints ls 2,\
'openMP-GPU.txt' using 1:2 t "OpenMP 4 cores" with linespoints ls 1,\
plot'openMP-GPU.txt' index 0 using 1:5 t "OpenMP 1 core" with linespoints ls 2,\
'openMP-GPU.txt' using 1:2 t "OpenMP 4 cores" with linespoints ls 1,\