Since ver. 10.0, theme settings can be configured through Elementor interface. New The7 users have this featured turned on by default. Existing users can enable it by referring to The7 -> My The7 -> Settings (fig. 1):
It will hide Theme Options in the topbar and enable Elementor Theme Style (fig. 2). Select “Yes” under “Would you like to generate Global Colors and Fonts based on Theme Options?” – it will migrate existing theme settings (colors, fonts, etc.) to the Elementor interface.
Now, you can reach the simplified theme settings block under Elementor “Site Settings” (fig. 2):