Where do I start?

[wherkamp]

I know CSS and HTML. I know the Basics of Java Script. However, if I want to make a theme where do I start to know on making one?

[Dark-Power-Invader]

I know CSS and HTML. I know the Basics of Java Script. However, if I want to make a theme where do I start to know on making one?

Go with the default theme provided with MyBB.

[wherkamp]

I know CSS and HTML. I know the Basics of Java Script. However, if I want to make a theme where do I start to know on making one?

Go with the default theme provided with MyBB.

Ok so I modify it? Ok, my question is how do I know what id's or classes go to what sections of the page? Do I just inspect and call it good?

[.m.]

Do I just inspect and call it good?

^ yes. see also this older guidance which can be of some help

Also MyBB forum pages' source code contains templates names in comment tags
[provided that relevant setting is turned on at forum admin panel]

[wherkamp]

Do I just inspect and call it good?

^ yes. see also  this older guidance which can be of some help  

Also MyBB forum pages' source code contains templates names in comment tags
[provided that relevant setting is turned on at forum admin panel]

Ok, Thank you.

[.m.]

I missed mentioning web developer tools [eg. web developer toolbar] ..

[Damons]

I just got into mybb close to a month ago. I found doing a CSS delete helped the most. The software as a whole is quite stable however the front end leaves everything to be desired. Start from the ground up on all major pages using a modern framework like flexbox. It'll take a while to make your theme but by the end you'll have a solid understanding of how mybb works and where things are.