Dear All,
I have changed the theme of my KDE desktop (window decoration, widget style etc.). Everything is fine, but in some places the remnants of the old default bluish theme are visible. For example the default image in the K-menu is still there and the tabs in conqueror metabar are still blue, which looks ugly in new theme.
How can I get rid of things?

Thanks in advance,
Semen

Here are two threads that should answer your questions about the K-menu:
Menu text in K-menu
K-menu Logo

I'm not sure I understand what you want to change in Konqueror, could you attach a pic?

Welcome to the board!

Thank you! This helps.