How easily change font size in spacemacs?

Question

How do change the font size in spacemacs? Do I need to download additional packages such as source code font?

I tried changing the font size in the configuration file, but the font size does not change. I am having trouble installing source code font, because the font paths are not registered correctly. The fonts were installed via the instructions provided by open source Adobe. Is there an easier way to do such a simple task in spacemacs?

Answer 1

In my .spacemacs file I have the following

(defun dotspacemacs/init ()   (setq-default    dotspacemacs-startup-lists '(recents bookmarks projects)    dotspacemacs-default-font '("SourceCode Pro"                                :size 18                                :weight normal                                :width normal                                :powerline-offset 2)) 

Of course you should change the font to your liking. The powerline has some char that goes well with the powerline in spacemacs.

To get to .spacemacs simply type SPC f e d to reload the new file type SPC f e R.

This should do it.
And yes I am an old man with less than optimal eyes, hence the rather large font.

Answer 2

Another way is to use the key sequence "SPC z x" and then press "+/=" key to increase font size or "-" key to decrease font size. Other options are shown on the which-key menu.