style.css

html {
    background: url(data:image/png;base64,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) !important;
}

._hintLabel {
    -webkit-transform:translate(-4px,-4px);
    position: absolute;
    z-index: 9223372036854775806 !important;
    font:bold .8em monospace;
    color: #888 !important;
    background-color: #000 !important;
    margin: 0;
    padding: 0px 1px;
    border: 1px solid #444 !important;
    opacity: 0.7 !important;
}
._hintElem {
  z-index: 9223372036854775805 !important;
    background-color: rgba(255,0,0,0.15) !important;
    color: #fff !important
}
._hintElem._hintFocus{
    background-color: rgba(255,0,0,0.15) !important;
    background-color: darkred !important;
    box-shadow: 0px 0px 5px red !important;
}
._hintLabel._hintFocus{
    z-index: 9223372036854775807 !important;
    opacity: 1
}