dotfiles/.config/gtk-3.0/gtk-effects.css

/*
 * disable ripple effects when overscrolling a list
 * and dotted lines when end of list is not reached
 */

/* -gtk-gradient(radial start_x, start_y, start_radius, end_x end_y, end_radius, color-stop (position, color), ...) */
overshoot.top,
overshoot.bottom,
overshoot.left,
overshoot.right {
    background: transparent;
    background-repeat: no-repeat;
    border: none;
    box-shadow: none;
}

overshoot.top {
    background-image: -gtk-gradient(radial, center top, 0, center top, 0.6, from(alpha(@acc1_color, 0.6)), to(transparent));
    background-size: 100% 60%;
    background-position: center top;
}

overshoot.bottom {
    background-image: -gtk-gradient(radial, center bottom, 0, center bottom, 0.6, from(alpha(@acc1_color, 0.6)), to(transparent));
    background-size: 100% 60%;
    background-position: center bottom;
}

overshoot.left {
    background-image: -gtk-gradient(radial, left center, 0, left center, 0.6, from(alpha(@acc1_color, 0.6)), to(transparent));
    background-size: 60% 100%;
    background-position: left center;
}

overshoot.right {
    background-image: -gtk-gradient(radial, right center, 0, right center, 0.6, from(alpha(@acc1_color, 0.6)), to(transparent));
    background-size: 60% 100%;
    background-position: right center;
}

undershoot.top,
undershoot.bottom,
undershoot.left,
undershoot.right {
    background: transparent;
    background-origin: content-box;
    border: none;
    box-shadow: none;
}