After long time using gnuplot, the default plot palette has changed for me. I would like to change it to the default (red, green...) or at least find where I can use other user-definde palettes without having to define linestyles at the beginning.
This happens both in wxt and pngcairo terms.
The color sequence has changed recently (version 5).
To revert to the original color sequence you need to
set colorsequence classic
Type help set colorsequence for more help.