SolarFM/user_config/solarfm/stylesheet.css

/* Set fm to have transparent window */
box,
iconview,
notebook,
paned,
stack,
scrolledwindow,
treeview.view,
.content-view,
.view {
    background: rgba(19, 21, 25, 0.14);
    color: rgba(255, 255, 255, 1);
}

notebook > header > tabs > tab:checked {
    /* Neon Blue 00e8ff */
    background-color: rgba(0, 232, 255, 0.2);
    /* Dark Bergundy */
    /* background-color: rgba(116, 0, 0, 0.25); */

    color: rgba(255, 255, 255, 0.8);
}

#message_view {
    font: 16px "Monospace";
}

.notebook-selected-focus {
    /* Neon Blue 00e8ff border */
    border: 2px solid rgba(0, 232, 255, 0.25);
    /* Dark Bergundy */
    /* border: 2px solid rgba(116, 0, 0, 0.64); */
}


.view:selected,
.view:selected:hover {
    box-shadow: inset 0 0 0 9999px rgba(21, 158, 167, 0.57);
    color: rgba(255, 255, 255, 0.5);
}


/* * {
    background: rgba(0, 0, 0, 0.14);
    color: rgba(255, 255, 255, 1);
} */

/* * selection {
    background-color: rgba(116, 0, 0, 0.65);
    color: rgba(255, 255, 255, 0.5);
} */

/* Rubberband coloring */
/* .rubberband,
rubberband,
flowbox rubberband,
treeview.view rubberband,
.content-view rubberband,
.content-view .rubberband,
XfdesktopIconView.view .rubberband {
    border: 1px solid #6c6c6c;
    background-color: rgba(21, 158, 167, 0.57);
}

XfdesktopIconView.view:active {
    background-color: rgba(172, 102, 21, 1);
} */