Webflow makes it super easy for your to customise the template to match your language. In the example, small is changed to tiny. This has no impact on style, but handy for customisation.
To change the buttons colors to match your palette, simply select a button, navigate to the background color selector, whack edit, and change the color to match your brand. It's also worth changing the color name!
Size changes occur in the style pan, in the styling accordion. Be mindful that the size change you make will only be applied to that webflow selector.