You can now manage edit your website fonts and color palette in the theme manager panel. Any changes to the fonts and colors in the panel will affect your entire website design.
Keep in mind:
Your website design, elements design across the website, will be affected by the changes in the panel, only if your site elements are connected (wired) to the site fonts or colors accordingly, e.g fonts are defined to heading 1, heading 2, paragraph 1, etc. And colors are selected from the site color palette.