How to learn Advanced Wordpress development?
I am a front-end developer, i learnt php as i wanted to develop premium wordpress theme from scratch, inorder to sell it later in themeforest, front-end i can handle, BUT about the backend, i don't know how to setup the admin panel that is there generally in premium themes. I tried finding tutorials on lynda aswell but no luck. Can someone direct me to tutorials of "advanced wordpress development" (specially theme options in back-end), or any suggestions, thanks, cheers !!!