I have read most of the help materials and I don’t think changing the colour of the “new record” button and the “change design” button is supported. But I’m sure the Ragic support team will confirm when they are back online.
The colors of those buttons cannot be modified.
If I will embed it in my website then I can design as I please, right?
With the Web Embed, you can add custom CSS to it. See here for detail: https://www.ragic.com/intl/en/doc/13/Embedding-on-your-website
But with the “Raw Embed”, we currently don’t have a custom CSS option for it.
For a fully customized HTML form, you can refer to this page on how to design the form and use our HTTP API to save record: https://www.ragic.com/intl/en/doc-api/19/Creating-entries-with-custom-HTML-forms