Dear Pavel: Thank you for your feedback!
Right now, I think the only one way is a custom attribute. Take a look at this example, where a custom CSS_CHAR attribute is used with a custom RichTextArea that adds support for it: https://github.com/andy-goryachev-oracle/Test/blob/main/src/goryachev/research/RichTextArea_CustomAttributes_Example.java Keep in mind that there could be only one such attribute set on a text segment (even though the attribute value may specify multiple -fx- properties). This means you need to implement your own logic to merge the values if you want to "apply" a property to a selection. Hope this helps. Let me know how if it works in your use case. Thanks, -andy From: PavelTurk <[email protected]> Date: Friday, April 3, 2026 at 07:12 To: [email protected] <[email protected]> Subject: [External] : What is the right way to set styles in RichTextArea when the user can change the theme? Hi everyone, I have a question about working with styles when the user can change the theme (for example, from light to dark, or even within different dark variants). Here’s the situation: I’m building a simple console where the user enters commands, the commands are executed, and output is displayed with styling. With RichTextFX, it was simple — I just added a piece of text and assigned a CSS class. When the user changed the theme, all the styles updated automatically. Now I’m trying to do something similar with JFX RichTextArea, but unfortunately I haven’t figured out how yet. The only API I found for working with CSS styles is RichParagraph.builder(). But as far as I understand, it’s supposed to be used only with SyntaxDecorator. That’s fine in theory, but in that case I would have to store the model of my command output, which would significantly complicate things. On the other hand, there is SimpleViewOnlyStyledModel, but as I understand it, that’s for read-only text, which doesn’t suit my needs. Could someone suggest which API I should use for my case? Best regards, Pavel
