dot/.local/share/gnome-shell/extensions/activities_icon_menu@fawtytoo/stylesheet.css

.activitiesiconmenu-box
{
    spacing: 32px;
}

.activitiesiconmenu-button > StIcon
{
    icon-size: 64px;
}

.activitiesiconmenu-button
{
    -st-icon-style: symbolic;
    border-radius: 32px;
    padding: 10px;
}

.activitiesiconmenu-button:hover,
.activitiesiconmenu-button:focus
{
    border: none;
    padding: 11px;
}