gif generated doesn't render special characters perfectly

[yittg]

terminalizer is a cool tool to record terminal and generate gif. 👍
I use it in my project to record a demonstration, and it works perfectly, record, and play, until render as an animated gif image.
I attached the gif generated at the end of readme doc, and a screenshot what it should be at the top.
Those parts are made up of these characters '▁', '▂', '▃', '▄', '▅', '▆', '▇', '█' (see origin).
Can this be fixed? 😁

[faressoft]

Why you closed it? Is it invalid?

[yittg]

@faressoft figured out that it is about xterm.js and character rendering in html, not a terminalizer issue, so close it.