Hi there, thanks for your patch. I've added our Yakuake dev as a reviewer.
In the meantime could you format the commit message as described here (https://community.kde.org/Infrastructure/Phabricator#Formatting_your_patch)? Since this is a visual change it would also be good to see a before and after screenshot.
There's a small thing needed here: We need to add Qt::Svg as an explicit dependency, otherwise displaying SVG files only works by accident. But I can do that seperately if you don't want to expand the patch.
Do you have dev access or do you need help landing this?