Config is only reloaded and applied on restart of ghostty

[madsravn]

I have one single line in my config located at ~/.config/ghostty/config. It says
font-size = 14

When I do the Cmd+Shift+, it does not apply the change in font-size if I change it to 20. When I use the visual menu (Ghostty -> Reload Configuration) it is the same issue.

However, if I change the line to font-size = 16px it will show my an alert-box saying that my configuration is faulty. Thus, it actually reads the config file.

[slovdahl]

Did you try opening a new tab? Quoting ghostty +show-config --default --docs, and specifically the start of the second paragraph:

# Font size in points. This value can be a non-integer and the nearest integer
# pixel size will be selected. If you have a high dpi display where 1pt = 2px
# then you can get an odd numbered pixel size by specifying a half point.
#
# For example, 13.5pt @ 2px/pt = 27px
#
# Changing this configuration at runtime will only affect new terminals,
# i.e. new windows, tabs, etc. Note that you may still not see the change
# depending on your `window-inherit-font-size` setting. If that setting is
# true, only the first window will be affected by this change since all
# subsequent windows will inherit the font size of the previous window.
font-size = 12

[madsravn]

Tried staying in current window, new tab and new window. Nothing works. I need to restart ghostty in order to see the change.

[slovdahl]

Are you on Linux or macOS? You say ~/.config/ghostty/config but also Cmd+Shift+,. On macOS it seems to work fine for me, but I'm actually seeing something similar with 1.0.1 on Ubuntu 24.04.

[slovdahl]

Expected, see #4314 (reply in thread).

[mitchellh]

I cannot reproduce this. I'm moving to Q&A. I suspect you're hitting conflicts with this and https://ghostty.org/docs/config/reference#window-inherit-font-size

[kdien]

Changes to font size require a reload (cmd/ctrl + shift + ,), followed by a size reset (cmd/ctrl + 0)

[slovdahl]

Me and @madsravn don't get the new font size applied for new tabs or windows either.

#4314 (reply in thread)
#4314 (reply in thread)

[mitchellh]

That's expected if you have window-inherit-font-size set. https://ghostty.org/docs/config/reference#window-inherit-font-size

[slovdahl]

Ah, hmm.. I did not set it explicitly, but it seems like it defaults to true. So yes, I have it enabled. Thanks!

Maybe the toast could notify the user about the changed default font size and suggest how to get it applied 🤷

[madsravn]

What is the default value of window-inherit-font-size? Because I only have one line in my config, the line setting the font-size.

Also, can you elaborate a little on why that is expected? Why don't we want to have font-size applied from the config if window-inherit-font-size is set?

[slovdahl]

$ ghostty +show-config --default --docs | grep ^window-inherit-font-size
window-inherit-font-size = true