html {
    filter: invert(100%) hue-rotate(180deg);
}
/* Re-inversion for images, videos */
html img:not(.navbar-brand .full),
html video {
    filter: invert(100%) hue-rotate(180deg);
}

a,.is-active
{
    color: #42a5f5;
}
.button {
    background: #42a5f5;
}

.header .logo {
    display: flex;
    justify-content: center;
}

.header .logo img {
    width: auto;
    max-width: 16em !important;
}