Please check out the video below to understand how you can change the font size in your Tars Chatbot.
The below image is of a regular chatbot using the default font-size settings.
2. The below is when we change the font-size to 23.
Please observe the URL in the image.
You can achieve the font-size change by passing ?_aA=<font-size value>
in our case it was https://chatbot.hellotars.com/conv/N1AIXU/?_aA=23
where 23 is the font-size value.