Dzięki. Ze względu na przewodnik dotyczący importowania niestandardowego arkusza stylów znalazłem ten przewodnik
Kod idzie:
.nemo-pathbar-button,
NemoPathbarButton {
background-image: -gtk-gradient(linear, left top, left bottom,
color-stop (0, shade(@dark_bg_color, 1.1)),
color-stop (.3, shade(@dark_bg_color, 1.1)),
color-stop (.7, shade(@dark_bg_color, 0.90)),
color-stop (1, shade(@dark_bg_color, 0.80)));
border-color: shade(@dark_bg_color, 0.7);
-NemoPathbarButton-border-radius: 3px;
}
NemoPathbarButton:active {
background-image: -gtk-gradient(linear, left top, left bottom,
color-stop (0, shade(@dark_bg_color, .8)),
color-stop (.3, shade(@dark_bg_color, .9)),
color-stop (1, shade(@dark_bg_color, 1.0)));
border-color: shade(@dark_bg_color, 0.7);
}
NemoPathbarButton:hover {
background-image: -gtk-gradient(linear, left top, left bottom,
color-stop (0, shade(alpha(@dark_bg_color, 1.4), 1.25)),
color-stop (.3, shade(alpha(@dark_bg_color, 1.4), 1.25)),
color-stop (.7, shade(alpha(@dark_bg_color, 1.4), 0.95)),
color-stop (1, shade(alpha(@dark_bg_color, 1.4), 0.85)));
border-color: shade(@dark_bg_color, 0.7);
}