Unable to change default color scheme

[Ygarr]

No matter what I do, everything is the same "Nocturne" theme after restart

[realh]

Have you tried opening the Configuration Editor and selecting the radio for the colour scheme you want to be the default? In recent versions you can override it in a Profile, and also choose different themes depending on whether GNOME is in dark or light mode.

[Ygarr]

Figured out.
Preferences > Edit current profile > Appearance > (Light/Dark) Color scheme drop down.
Works for me. Now color style fixed.
Thanks!