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    <div class="moz-text-html" lang="x-western"> <span style="color:
        rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif;
        font-size: small; font-style: normal; font-variant-ligatures:
        normal; font-variant-caps: normal; font-weight: 400;
        letter-spacing: normal; orphans: 2; text-align: start;
        text-indent: 0px; text-transform: none; white-space: normal;
        widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
        background-color: rgb(255, 255, 255); text-decoration-thickness:
        initial; text-decoration-style: initial; text-decoration-color:
        initial; display: inline !important; float: none;">Dear Graph
        Drawers,<br>
        <br>
        this is a reminder of our call for volunteers for our user
        study. If you haven't done it yet, please consider to
        participate to the user study.<br>
        <br>
        Thank you in advance for your collaboration<br>
        <br>
        Emilio Di Giacomo<br>
        Walter Didimo<br>
        Beppe Liotta<br>
        Fabrizio Montecchiani<br>
        Alessandra Tappini<br>
        <br>
        <blockquote type="cite">
          <div class="moz-text-html" lang="x-western"><span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Dear
              Graph Drawers,</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">We are
              conducting a user study to compare different types of
              hybrid graph visualizations.</span><br style="color:
              rgb(34, 34, 34); font-family: Arial, Helvetica,
              sans-serif; font-size: small; font-style: normal;
              font-variant-ligatures: normal; font-variant-caps: normal;
              font-weight: 400; letter-spacing: normal; orphans: 2;
              text-align: start; text-indent: 0px; text-transform: none;
              white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">If you
              have a bit of time, please help us by participating to the
              study!</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">This
              will take you about 25-30 minutes, including a short
              tutorial and a short training.</span><br style="color:
              rgb(34, 34, 34); font-family: Arial, Helvetica,
              sans-serif; font-size: small; font-style: normal;
              font-variant-ligatures: normal; font-variant-caps: normal;
              font-weight: 400; letter-spacing: normal; orphans: 2;
              text-align: start; text-indent: 0px; text-transform: none;
              white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Since
              you will be asked to execute visual tasks, you should
              avoid using a small screen (mobile phone or small tablet).</span><br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Please,
              visit the survey here:</span><br style="color: rgb(34, 34,
              34); font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <a href="http://mozart.diei.unipg.it/limesurvey/index.php/963874?lang=en" target="_blank" data-saferedirecturl="https://www.google.com/url?q=http://mozart.diei.unipg.it/limesurvey/index.php/963874?lang%3Den&source=gmail&ust=1619886514754000&usg=AFQjCNEnkkz-E4DuWfkW-7QWZ83wAqYEDQ" style="color: rgb(17, 85, 204); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
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              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255);">http://mozart.diei.unipg.it/<wbr>limesurvey/index.php/963874?<wbr>lang=en</a><br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Comments
              are also very welcome! (You can provide feedback in the
              last question of the study.)</span><br style="color:
              rgb(34, 34, 34); font-family: Arial, Helvetica,
              sans-serif; font-size: small; font-style: normal;
              font-variant-ligatures: normal; font-variant-caps: normal;
              font-weight: 400; letter-spacing: normal; orphans: 2;
              text-align: start; text-indent: 0px; text-transform: none;
              white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Thank
              you in advance for your consideration and your valuable
              help.</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <br style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Emilio
              Di Giacomo</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Walter
              Didimo</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Beppe
              Liotta</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Fabrizio
              Montecchiani</span><br style="color: rgb(34, 34, 34);
              font-family: Arial, Helvetica, sans-serif; font-size:
              small; font-style: normal; font-variant-ligatures: normal;
              font-variant-caps: normal; font-weight: 400;
              letter-spacing: normal; orphans: 2; text-align: start;
              text-indent: 0px; text-transform: none; white-space:
              normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial;">
            <span style="color: rgb(34, 34, 34); font-family: Arial,
              Helvetica, sans-serif; font-size: small; font-style:
              normal; font-variant-ligatures: normal; font-variant-caps:
              normal; font-weight: 400; letter-spacing: normal; orphans:
              2; text-align: start; text-indent: 0px; text-transform:
              none; white-space: normal; widows: 2; word-spacing: 0px;
              -webkit-text-stroke-width: 0px; background-color: rgb(255,
              255, 255); text-decoration-thickness: initial;
              text-decoration-style: initial; text-decoration-color:
              initial; display: inline !important; float: none;">Alessandra
              Tappini</span> </div>
        </blockquote>
        <br>
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        Helvetica, sans-serif; font-size: small; font-style: normal;
        font-variant-ligatures: normal; font-variant-caps: normal;
        font-weight: 400; letter-spacing: normal; orphans: 2;
        text-align: start; text-indent: 0px; text-transform: none;
        white-space: normal; widows: 2; word-spacing: 0px;
        -webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
        255); text-decoration-thickness: initial; text-decoration-style:
        initial; text-decoration-color: initial; display: inline
        !important; float: none;"></span> </div>
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