As this topic has been started from themeforest comment section, I will continue from there..
https://themeforest.net/item/markety-seo-digital-marketing-wordpress-theme/18858775/comments
I have two Main Issues-

1. How can I change the background of Mobile drop down menu color ? I know you have told me that there is no additional option for now in theme settings, But There must be a way to do this by editing that particular element, Please help me to locate this code/element through wordpress editor and tell me which line of code I should edit, rest I can do that.. Please help me at this,, this is very important for me.
2. I want the blog template page as like standard blog page on your theme,
   You Told Me – You do not need to select any custom template to showing default blog post just select “Default Template” for that and select that page as post page from “Settings > ReadingYes I have already done that, the problem is though I have selected to show only[ For each article in a feed, show “summary” ] its showing the whole article, Even if I am selecting other blog templates such as blog grid, its showing the whole post. Check this – http://prnt.sc/dualdj