d {\n  border-color: #28a745;\n  padding-right: calc((1em + 0.75rem) * 3 / 4 + 1.75rem);\n  background: url(\"data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E\") no-repeat right 0.75rem center/8px 10px, url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27...

    #hide_overview svg {
      stroke-width: 18;
      stroke: black;
    }

    #hide_overview:hover svg {
      background: black;
      stroke: white;
    }

    #open_histograms, #close_histograms, #open_histograms svg, #close_histograms svg {
      height: 1em;
    }

    #close_histograms {
      display: none;
    }

    #open_histograms svg {