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<h1 id="styling">Styling</h1>
<p>There are a number of options to allow styling an axis. There are settings to control <a href="#grid-line-configuration">grid lines</a> and <a href="#tick-configuration">ticks</a>.</p>
<h2 id="grid-line-configuration">Grid Line Configuration</h2>
<p>The grid line configuration is nested under the scale configuration in the <code>gridLines</code> key. It defines options for the grid lines that run perpendicular to the axis.</p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>display</code></td>
<td><code>Boolean</code></td>
<td><code>true</code></td>
<td>If false, do not display grid lines for this axis.</td>
</tr>
<tr>
<td><code>color</code></td>
<td><code>Color/Color[]</code></td>
<td><code>'rgba(0, 0, 0, 0.1)'</code></td>
<td>The color of the grid lines. If specified as an array, the first color applies to the first grid line, the second to the second grid line and so on.</td>
</tr>
<tr>
<td><code>borderDash</code></td>
<td><code>Number[]</code></td>
<td><code>[]</code></td>
<td>Length and spacing of dashes on grid lines. See <a href="https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash" target="_blank">MDN</a></td>
</tr>
<tr>
<td><code>borderDashOffset</code></td>
<td><code>Number</code></td>
<td><code>0</code></td>
<td>Offset for line dashes. See <a href="https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineDashOffset" target="_blank">MDN</a></td>
</tr>
<tr>
<td><code>lineWidth</code></td>
<td><code>Number/Number[]</code></td>
<td><code>1</code></td>
<td>Stroke width of grid lines.</td>
</tr>
<tr>
<td><code>drawBorder</code></td>
<td><code>Boolean</code></td>
<td><code>true</code></td>
<td>If true, draw border at the edge between the axis and the chart area.</td>
</tr>
<tr>
<td><code>drawOnChartArea</code></td>
<td><code>Boolean</code></td>
<td><code>true</code></td>
<td>If true, draw lines on the chart area inside the axis lines. This is useful when there are multiple axes and you need to control which grid lines are drawn.</td>
</tr>
<tr>
<td><code>drawTicks</code></td>
<td><code>Boolean</code></td>
<td><code>true</code></td>
<td>If true, draw lines beside the ticks in the axis area beside the chart.</td>
</tr>
<tr>
<td><code>tickMarkLength</code></td>
<td><code>Number</code></td>
<td><code>10</code></td>
<td>Length in pixels that the grid lines will draw into the axis area.</td>
</tr>
<tr>
<td><code>zeroLineWidth</code></td>
<td><code>Number</code></td>
<td><code>1</code></td>
<td>Stroke width of the grid line for the first index (index 0).</td>
</tr>
<tr>
<td><code>zeroLineColor</code></td>
<td>Color</td>
<td><code>'rgba(0, 0, 0, 0.25)'</code></td>
<td>Stroke color of the grid line for the first index (index 0).</td>
</tr>
<tr>
<td><code>zeroLineBorderDash</code></td>
<td><code>Number[]</code></td>
<td><code>[]</code></td>
<td>Length and spacing of dashes of the grid line for the first index (index 0). See <a href="https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash" target="_blank">MDN</a></td>
</tr>
<tr>
<td><code>zeroLineBorderDashOffset</code></td>
<td><code>Number</code></td>
<td><code>0</code></td>
<td>Offset for line dashes of the grid line for the first index (index 0). See <a href="https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/lineDashOffset" target="_blank">MDN</a></td>
</tr>
<tr>
<td><code>offsetGridLines</code></td>
<td><code>Boolean</code></td>
<td><code>false</code></td>
<td>If true, grid lines will be shifted to be between labels. This is set to <code>true</code> in the bar chart by default.</td>
</tr>
</tbody>
</table>
<h2 id="tick-configuration">Tick Configuration</h2>
<p>The tick configuration is nested under the scale configuration in the <code>ticks</code> key. It defines options for the tick marks that are generated by the axis.</p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>callback</code></td>
<td><code>Function</code></td>
<td></td>
<td>Returns the string representation of the tick value as it should be displayed on the chart. See <a href="labelling.html#creating-custom-tick-formats">callback</a>.</td>
</tr>
<tr>
<td><code>display</code></td>
<td><code>Boolean</code></td>
<td><code>true</code></td>
<td>If true, show tick marks</td>
</tr>
<tr>
<td><code>fontColor</code></td>
<td><code>Color</code></td>
<td><code>'#666'</code></td>
<td>Font color for tick labels.</td>
</tr>
<tr>
<td><code>fontFamily</code></td>
<td><code>String</code></td>
<td><code>"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif"</code></td>
<td>Font family for the tick labels, follows CSS font-family options.</td>
</tr>
<tr>
<td><code>fontSize</code></td>
<td><code>Number</code></td>
<td><code>12</code></td>
<td>Font size for the tick labels.</td>
</tr>
<tr>
<td><code>fontStyle</code></td>
<td><code>String</code></td>
<td><code>'normal'</code></td>
<td>Font style for the tick labels, follows CSS font-style options (i.e. normal, italic, oblique, initial, inherit).</td>
</tr>
<tr>
<td><code>reverse</code></td>
<td><code>Boolean</code></td>
<td><code>false</code></td>
<td>Reverses order of tick labels.</td>
</tr>
<tr>
<td><code>minor</code></td>
<td><code>object</code></td>
<td><code>{}</code></td>
<td>Minor ticks configuration. Omitted options are inherited from options above.</td>
</tr>
<tr>
<td><code>major</code></td>
<td><code>object</code></td>
<td><code>{}</code></td>
<td>Major ticks configuration. Omitted options are inherited from options above.</td>
</tr>
</tbody>
</table>
<h2 id="minor-tick-configuration">Minor Tick Configuration</h2>
<p>The minorTick configuration is nested under the ticks configuration in the <code>minor</code> key. It defines options for the minor tick marks that are generated by the axis. Omitted options are inherited from <code>ticks</code> configuration.</p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>callback</code></td>
<td><code>Function</code></td>
<td></td>
<td>Returns the string representation of the tick value as it should be displayed on the chart. See <a href="labelling.html#creating-custom-tick-formats">callback</a>.</td>
</tr>
<tr>
<td><code>fontColor</code></td>
<td><code>Color</code></td>
<td><code>'#666'</code></td>
<td>Font color for tick labels.</td>
</tr>
<tr>
<td><code>fontFamily</code></td>
<td><code>String</code></td>
<td><code>"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif"</code></td>
<td>Font family for the tick labels, follows CSS font-family options.</td>
</tr>
<tr>
<td><code>fontSize</code></td>
<td><code>Number</code></td>
<td><code>12</code></td>
<td>Font size for the tick labels.</td>
</tr>
<tr>
<td><code>fontStyle</code></td>
<td><code>String</code></td>
<td><code>'normal'</code></td>
<td>Font style for the tick labels, follows CSS font-style options (i.e. normal, italic, oblique, initial, inherit).</td>
</tr>
</tbody>
</table>
<h2 id="major-tick-configuration">Major Tick Configuration</h2>
<p>The majorTick configuration is nested under the ticks configuration in the <code>major</code> key. It defines options for the major tick marks that are generated by the axis. Omitted options are inherited from <code>ticks</code> configuration.</p>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>callback</code></td>
<td><code>Function</code></td>
<td></td>
<td>Returns the string representation of the tick value as it should be displayed on the chart. See <a href="labelling.html#creating-custom-tick-formats">callback</a>.</td>
</tr>
<tr>
<td><code>fontColor</code></td>
<td><code>Color</code></td>
<td><code>'#666'</code></td>
<td>Font color for tick labels.</td>
</tr>
<tr>
<td><code>fontFamily</code></td>
<td><code>String</code></td>
<td><code>"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif"</code></td>
<td>Font family for the tick labels, follows CSS font-family options.</td>
</tr>
<tr>
<td><code>fontSize</code></td>
<td><code>Number</code></td>
<td><code>12</code></td>
<td>Font size for the tick labels.</td>
</tr>
<tr>
<td><code>fontStyle</code></td>
<td><code>String</code></td>
<td><code>'normal'</code></td>
<td>Font style for the tick labels, follows CSS font-style options (i.e. normal, italic, oblique, initial, inherit).</td>
</tr>
</tbody>
</table>
</section>
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