title: Customizing the tooltip with chartkick in Ruby on Rails
body: <p>I'm doing a rails app and was able to get <a href="http://chartkick.com/" rel="nofollow noreferrer">chartkick</a> working but customizing it is a bit of a pain in the butt. I'm trying to customize the tooltip with the Google chart API but I can't seem to figure out. I just want to be able to change the text, <strong>"Value"</strong>. </p>
  
  <p>Could someone put me in the right direction. </p>
  
  <p>Here is my code:
  </p>
  
  <pre><code>&lt;%=
    column_chart [
      ["Strongly Disagree", p[1]],
      ["Disagree", p[2]],
      ["Neutral", p[3]],
      ["Agree", p[4]],
      ["Strongly Agree", p[5]]
    ],
    height: "220px",
    library: {
      width: 665,
      fontName: "Helvetica Neue",
      colors: ["#29abe2"],
      tooltip: {
        textStyle: {
          color: "#333333"
        }
      },
      bar: {
        groupWidth: "50%"
      },
      vAxis: {
        title: "Everyone",
        titleTextStyle: {
          italic: false,
          color: '#777'
        },
        gridlines: {
          color: "#eeeeee"
        },
        viewWindow: {
          max: m
        }
      }
    }
  %&gt;
  </code></pre>