Misago/misago/admin/src/style/navbar.scss

// Size Misago logo in navbar
.navbar-brand {
  display: flex;
  align-items: center;

  img {
    height: 2rem;
    margin-right: $spacer / 2;
    border-radius: $border-radius;
  }
}

// Vertically center user btn contents
.navbar .btn-user {
  @extend .btn-light;
  @extend .p-0;

  overflow: hidden;

  img {
    height: 2rem;
  }
}