Created attachment 151386 [details] screenshot (menu options are in brazilian portuguese) SUMMARY Squiggle annotation icon seems the same as the underline icon, at the annotations bar. SOFTWARE/OS VERSIONS KDE Frameworks 5.78.0 Qt 5.15.2 (compilado com 5.15.2)
You need to get yourself a better icon set. This is how it looks with breeze https://i.imgur.com/P2fbv0c.png
Thanks for the tip, Albert. Could you give me some help about how to solve the issues with my icons set? I am not currently using KDE. It is GNOME. After your answer, I installed the packages breeze-gtk-theme and breeze-icon-theme. The issue with some other icons was solved, but the squiggle keeps looking the same as underline (screenshot attached).
Created attachment 151400 [details] screenshot after installing breeze icons set screenshot after installing breeze icons set, as suggested
> Could you give me some help about how to solve the issues with my icons set? You need to use an icon set tthat provides the format-text-underline-squiggle icon