I tried to follow the tutorial to set up design of the new blog ( https://support.wix.com/en/article/designing-your-new-wix-blog ) but can't find any way to change colour of links even though the article claim that it's in the section " Button and Background " - all I get in there is image below.

Even though I have set it up this way, all link and buttons are still yellow which doesn't fit the style of my website. It looks awful..
Hi,
you have the new post settings we recently introduced for newly created blogs. Please access your post page clicking at the bottom in the blog settings:
And here you'll be able to customise the needed colours: