I’m working on my custom script editor plugin, and I wanted multicolored text. I figured out how to do so from another devforum post. BUT, when it formats inside the plugin, it just leaves the unformatted text even though the textbox is richtext enabled. The funny thing is that when I copy the unformatted text and paste into a richtext textbox, it formats just fine!
Richtext should work fine inside a plugin. As many plugins do use richtext. Try creating a TextLabel and setting the text to the richtext. And make sure TextLabel.RichText = true.
Try setting the Text to 'hello <font color="rgb(255,0,0)"> RED </font> text'