How difficult is it to style the forums?

I am working on an MMO game website. We are using PHPBB 3.1 for our forums. The bosses want to change to Discourse forums after viewing Tree of Savior’s forums. I have many questions but the first is how easy is it to style the forums to match the rest of a website. Here is our current website - http://sacramentgame.com. The site is built with Bootstrap 3 framework. Our forums were implemented by another person so the styling is not quite the same. I am restyling them on a staging site to make sure everything matches as best I can. The staging forums are at http://staging.sacramentgame.com/forum. It’s a work in progress. Any insight to difficulty or ease of styling would be greatly appreciated.

You will be looking at mostly CSS changes. There is no easy way to change the html (apart from adding stuff to header/footer etc). So it depends on your design and front end (CSS) code skills I guess.

Have a look at the ‘visit our discourse forums’ thread for inspiration

Thank you. Took a look at some of the sites. Most have very little styling but a couple of the gaming sites do have nice layouts. This looks like something I could handle.

Sorry for the off-topic, but this is a huge forum for Discourse to land. It’s probably one of the biggest (if not the biggest) instances to date.

@FoxdenVixen @AstonJ it actually is relatively easy to change the HTML on a number of areas.

This post provides some info on how to customize the templates.
https://meta.discourse.org/t/how-to-customize-discourse-templates/34813

We have changed a bit of the category template for desktop and mobile at HelloForos

@FoxdenVixen have you decided whether to move to Discourse?

We are moving forward with Discourse as we found someone who can do the migration from MySql to PostgresSQL. Now I am gathering apps that I will need to create a local staging instance of the new forums where I will re-style it to match our current site. It is not user friendly by any means. This is for seasoned developers in my opinion. I run Windows 10 but have to create a Virtual Machine in order to run this. Unfortunately, I am a designer not a developer. I appreciate the documentation linked above so I can figure this all out.