GNOME Bugzilla – Bug 608177
Display artifacts in toolbox
Last modified: 2010-09-18 19:26:36 UTC
Created attachment 152328 [details] part of screenshot to illustrate the problem I'm not really sure what triggers the problem. Affects both integrated and classic UI. Try to resize at small toolbox sizes to reproduce.
There are various bug reports related to gtk-2-18, especially regarding themes, e.g. bug #598299 discourages its use in general. It does not look so bad for me, but there are certainly bugs introduced by the client-side-window work new in gtk-2-18. Without being able to reproduce the artifacts we'll never now.
There is noting to be changed in Dia to fix this. Just use a better Gtk version, maybe the upcoming gtk-2-22 will do better. Otherwise switch back to gtk-2-16.