> For the complete documentation index, see [llms.txt](https://docs.vitaracharts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vitaracharts.com/faq/after-upgrade-charts-lost-font-style-and-formatting.md).
# After upgrade charts lost font style and formatting
Prior to 4.2 font sizing was a little inconsistent and too small to be readable in most circumstances. In the 4.2 release version the styling in vitara charts is modified. Due to this the charts created 4.1 or prior version does not look the same when we open in 4.2 or above versions.
However, there is an easy way to revert to the old defaults.
Open customStyles.css located in **VitaraCharts/custom** folder. As shown below there is a section specifically available to revert to 4.1 styles.
You’ll have to just uncomment this section. For uncommenting, remove the leading /\* mark and the last \*/ mark as shown below.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.vitaracharts.com/faq/after-upgrade-charts-lost-font-style-and-formatting.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.