Created attachment 7955 Margin change to 12 The attached patch applies a minimal change to the System Load Plugin preferences dialog. The margin is adjusted from 18 to 12, per the GNOME 2 HIG. "Indent group members 12 pixels to denote hierarchy and association." https://developer.gnome.org/hig-book/2.32/design-window.html.en Thanks!
Sean Davis referenced this bugreport in commit 952f0d54ce56ae054b3e9d5d5f15aa06dac04d48 Preferences: Use standard 12px margin for child elements (bug #14677) https://git.xfce.org/panel-plugins/xfce4-systemload-plugin/commit?id=952f0d54ce56ae054b3e9d5d5f15aa06dac04d48
Patch applied with the above commit.