THIS. I remember the days when you could pick a theme (which was just a set of bitmaps with a fixed palette) and then pick a couple of "accent colors" to custo

THIS. I remember the days when you could pick a theme (which was just a set of bitmaps with a fixed palette) and then pick a couple of "accent colors" to customise it. If you picked your favourite shade of dark wine red as your GTK_ACCENT_COLOR (might have been called something else, I forget), then highlighted things like buttons, selected text, and the title bar of the active window only would be that color. I loved the old flexibility of being able to choose the shape of my buttons, title bars and widgets and then tweak the color myself - "I like that theme's rounded buttons, but I want them in red not blue" kind of thing.