RichTextFX | Rich-text area for JavaFX

I am new to RichTextFX and need some help. I want to use StyleClassedTextArea (see https://github.com/FXMisc/RichTextFX).

My simple java code:

This question seems very similar if not exactly the same. In that question, Slaw's 2nd suggestion involving fixing the module-info for correct module management seems appropriate. But what exactly does that mean; or rather, is there something wrong with my module that javafx is complaining about or is it some other module it's talking about?

This is my module-info.java

Is it possible to apply automatic HTML formatting to text as it's typed into a JavaFX HTMLEditor?

Previously I achieved what I wanted via the RichTextFx class, but I wanted to see if it's possible via HTMLEditor as this is now standard to JavaFX.

The only way I can see so far is to get the HTML text, strip it of its tags, then apply my own tag formatting, then set the HTML text contents again. Although inefficient this would probably work for what I want, but having tried it the editor loses focus and requestFocus() doesn't focus, and even if it did I think I'd have to set the cursor position.

i want to append specific text with style in StyleClassedTextArea in richtextfx using method append(String text, String sytleClass) but there was a problem

I have a program that at some point (may) displays two warnings - one about errors - those are in red, and one about warnings - those are in orange.

I wonder however if there is a way - using css - to have just one warning with some text red and some text orange.

Here is an example of what I want to achieve (the two can be separated into "sections"):

I am using CodeArea from RichTextFX in my code editor. I need to show context menu on right click and fill it based on the text where mouse is pointing. Like if I right click a function call, there will be "Go to declaration" in the context menu. To do that I need to get character index where the mouse is pointing. For MouseOverTextEvent there is the getCharacterIndex() method, but there is no such method in ContextMenuEvent or MouseEvent.

Saving the last index from MouseOverTextEvent is not a good option for me because I use MouseOverTextEvent for showing popup messages and this event has a 1 second delay (used setMouseOverTextDelay).

How can I get the character index for this right click event?

Executing the task "assembly" fails with [error] (assembly) java.nio.file.InvalidPathException: Trailing char < > at index 121: C:\Users\IdeaProjects\GlobalConfigEditor\target\scala-2.13\GlobalConfigEditor-SettingKey(This \ This \ This.

build.sbt