(http://i.imgur.com/9AgXcAc.png)
Well, I noticed that there's no any GUI about forums theme so I decided to make one which will explain how to change the current forum theme
• Firstly, you have to go to your profile and click on Look and layout
(http://i.imgur.com/mdHXmqQ.png)
• Secondly, you have to search for "Current Theme" and click on "Change"
(http://i.imgur.com/dUuVd3Y.png)
• Thirdly, Preview any theme to view how it looks like and click on "Use this theme" if you liked it
(http://i.imgur.com/GbhU1MP.png)
You will only be able to use these current forum themes, You could also suggest adding a new forum theme but it won't be the default one
- SMF Default Theme - Curve
(http://i.imgur.com/w851RVU.png)
(http://i.imgur.com/pXEYXHu.png)
(http://i.imgur.com/T0uvqn3.png)
(http://i.imgur.com/yeLc5RY.png)
(http://i.imgur.com/49kbh63.png)
I hope that I didn't forget anything and this guide will be useful for all who will read it, thanks for reading