In the options it is no longer possible to change the syntax colors.
But you can edit the colors in the installation path\Codesys\Themes\ in the .editorthemes files.
Just open these files with Notepad and change the colors.
It's a bit complex... so I've created a tool that lets you create your own design.
You can download the tool here: Download (Link Updated 24.04.2019)
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
where syntax highlighting in options?
In the options it is no longer possible to change the syntax colors.
But you can edit the colors in the installation path\Codesys\Themes\ in the .editorthemes files.
Just open these files with Notepad and change the colors.
It's a bit complex... so I've created a tool that lets you create your own design.
You can download the tool here: Download (Link Updated 24.04.2019)
Thank you! I'll try and write about the results.