[BUG] Show-truncated in labels and buttons about eww HOT 3 OPEN

This is because eww now uses gtk's truncation system, and gtk somehow decided that there wasn't enough space to display your text. Setting :show-truncated "false" solves the problem because this feature isn't supported by gtk, so eww reverts to the old truncation system, which won't truncate anything if you don't set :limit-with.
I made a pull request to disable truncation by default (see #1084), but while waiting for it to be merged, you can indeed use :show-truncated "false" to disable it. It may also be possible to disable it by using :hexpand or :width on the right widgets.
For anything that isn't a label, having a string as a child implicitly creates a label, which means that

(button "a")

is exactly the same as

(button (label :text "a"))

So, for your powermenu, you'd fix it by using

(button :class "powermenu shutdown" 
		:onclick "systemctl poweroff"
		:tooltip "Shutdown"
		(label :show-truncated false
			 :text ""))

@kStor2poche may also be interested in this post

from eww.

Yup, I already fixed it this way, thanks anyway.

from eww.

Thank you, already fix it adding a label to the buttons.

from eww.