Operating system
Windows
Joplin version
3.5.13
Desktop version info
3.5.13
What issue do you have?
How can i implement graphic elements in text (ex. arrows)?
You mean in diagrams? If so Mermaid would work: https://joplinapp.org/help/apps/markdown/#diagrams
Emojis
are also a solution depending on what you mean
Possibly use Unicode characters?
Or a ligature font?