There is no “enf of line” characters in Writer.
Lines do not exist per se. They are a consequence of text flow. When a line is full and there is more data for this paragraph, a new line is allocated for the subsequent text. You won’t find any “EOL” character in the ODF XML representation of a Writer document.
When you export the document as a plain text file, all formatting information is stripped off and document layout is translated (very approximately) into plain text concepts: a single font face, spaces for alignment (right, center or tab stops) and OS markers for EOL (CR+LF under Windows, LF under *Nix, CR for other OS’s).
Now what is the relation between Character and Paragraph Styles, your question about EOL characters and the Code Colorizer Formatter extension? If you expect a useful answer, explain your purpose, define the goal and tell us where you see a difficulty.
PS: why are there sections in your sample? They are totally useless as you don’t change the number of columns. They only potentially make your document less stable and need more resources to manage.