Simply, Go to Lexio > Themes Options > General Settings:
 Main Logo: Logo of theme.
 Menu Logo: Logo sticky menu and canvas menu.
 Main color: Main color of theme.
 Google Map API: Key API of google map ( click how to get for find the key ).
 Use image Lazy Load: Enable Lazyload for image, help load page faster, saving bandwidth.
 Save Changes: Click on “Save Changes” to save all your modifications on Lexio Options.
2. Sidebar Settings
 Multi widget: Allow add multi sidebar for wordpress. write name sidebar you want and go to Appearance > widgets to enjoy.