# Read control nodes, generate HTML text with background
This example explains how to read control nodes and use the text widget’s HTML feature to style text with auto-sizing background.
Screenshot
### Widget used
* [Text widget](https://support.singular.live/hc/en-us/articles/360025486472-Text-Widget)
### Functions covered
* [comp.findWidget()](https://developer.singular.live/composition-scripting/cheat-sheets/fundamentals#findwidget)
* [comp.getPayload2()](https://developer.singular.live/composition-scripting/cheat-sheets/fundamentals#getpayload2)
* [widget.setPayload()](https://developer.singular.live/composition-scripting/cheat-sheets/fundamentals#setpayload-1)
Load this [example composition](https://app.singular.live/dashboard?templateLibraryItem=830) to follow along in a real composition
### Composition structure
The composition has one sub-composition called **Lower**, as you can see in the composition tree.
The Lower sub-composition with control nodes
To see this sub-composition's widgets:
1. [Open the composition script editor](/composition-scripting/composition-script-editor-reference.md#accessing-the-composition-script-editor) within the same [example composition](https://app.singular.live/compositions/459184/edit) as above and select the **Lower composition script**.
2. In the composition navigator, select the **Widget Explorer** tab.
This composition contains three widgets, but for this quick start, you'll look at the text widget, which in the composition is called **lowerText**.
Lower sub-composition payload JSON
### Composition script
Now that you have located the composition's text widget, learn how to use the text widget’s HTML feature to style text and set a background color in the Lower composition script.
You can also copy and paste the composition script below into your own compositions.
{% code title="Lower script" %}
```javascript
(function() {
const HTML_TEMPLATE = '{{firstname}} {{secondname}}';
// convert color JSON to CSS rgba()
const parseColor = function(color) {
const colorRgba = `rgba(${color.r}, ${color.g}, ${color.b}, ${color.a})`;
// console.log("colorRgba =", colorRgba);
return colorRgba;
}
return {
init: function(comp, context) {
// get reference to the fullname widget
const wiLowerText = comp.findWidget("lowerText")[0];
/**********************************************************************/
// we define a function to update the composition
function updateComposition() {
// get control node payload as JSON object
const p = comp.getPayload2();
console.log(p);
const colorRgba = parseColor(p["Background Color"]);
// build HTML text.
let htmlText = HTML_TEMPLATE.replace(/{{background-color}}/gi, colorRgba);
htmlText = htmlText.replace(/{{padding-right}}/gi, p["Padding Right"]);
htmlText = htmlText.replace(/{{padding-left}}/gi, p["Padding Left"]);
htmlText = htmlText.replace(/{{firstname}}/gi, p["Firstname"]);
htmlText = htmlText.replace(/{{secondname}}/gi, p["Lastname"]);
// update fullname text
wiLowerText.setPayload({
"text": htmlText
});
}
/**********************************************************************/
// we listen to payload_changed events
comp.addListener('payload_changed', (event, msg, e) => {
updateComposition();
e.stopPropagation();
});
/**********************************************************************/
// update the composition when loading the output URL
updateComposition();
},
close: function(comp, context) {}
};
})();
```
{% endcode %}
### Singular control app
{% embed url="" %}
Read control nodes, generate HTML text with background app
{% endembed %}
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