I just setup the new Macbook today and start to have the weird highlighting with the blue frame on the row when i use my mouse to select a particular row on the terminal. The other row will be faded a little bit (please check out my screenshot for more detail). This highlighting only appear with the zsh shell (with oh-my-zsh). When i turn the shell to bash again, i dont see this strange thing happen. Also there is a small arrow at the beginning of each row. I tried to change every other themes of oh-my-zsh but the issues still happen. All the configuration of zsh is just the default settings. Does anyone know why ?
My zsh version is zsh 5.9 (x86_64-apple-darwin23.0)
Edit: If I turn on tmux, thing becomes normal