What is the arrow in iTerm at the beginning of a line?

Question

Command line

Greetings.
Sometimes I use iTerm in macos Catalina. Today I noticed that some kind of arrow appeared on the left. Was she or was not her - the question! I don't think it was. Before that, I entered some commands into the terminal to unlock the possibility of installing the application not from the appStore. Now I'm a little puzzled by this arrow. Maybe somewhere something is "open" in the system after entering already forgotten commands, or is it supposed to be so? What about you? If you know what kind of arrow this is, please let me know.
Forgot, here is a screenshot of the window (on the left in the second line of the arrow):

Answer 1

After digging around, I found a solution to turn off show mark indicators , but it did not help me.
Therefore, in your chosen theme ~/.zshrc ZSH_THEME="robbyrussell" in the file ~/.oh-my-zsh/themes/robbyrussell.zsh-theme :

PROMPT="%(?:%{$fg_bold[green]%}➜ :%{$fg_bold[red]%}➜ )"
PROMPT+=' %{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)'

ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg_bold[blue]%}git:(%{$fg[red]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}✗"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})"

Here it is and the arrow
Depends on the chosen theme in zsh