Can’t change the font size (config.h code issue)

Hi, I installed st terminal from a link but I can’t change the font size or zoom in/out by keyboard shortcuts like Alt+Shift+PageUP/PageDown or Alt+j, Alt+k, Alt+Shift+j, Alt+Shift+k. I found some of this in config.h file code. What might be the issue here (Linux OS)?

Hey there!
I hope this helps
If you have difficulty reading the text on your screen, you can change the size of the font.

  1. Open the Activities overview and start typing Universal Access.
  2. Click on Universal Access to open the panel.
  3. In the Seeing section, switch the Large Text switch to on.

Alternatively, you can quickly change the text size by clicking the accessibility icon on the top bar and selecting Large Text.

In many applications, you can increase the text size at any time by pressing Ctrl++. To reduce the text size, press Ctrl+-.

Large Text will scale the text by 1.2 times. You can use Tweaks to make text size bigger or smaller.