Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

The navigation arrow is missing in v. 4.7 and makes navigation slower and adds to repetitive stress.

When clicking on a subcategory in the middle of the list and you need to go one step back, you now have to move your pointer up to the breadcrumb and hit a very tiny target representing the level you want to go back to.

Before v. 4.7, you could just move your pointer a few pixels to the left and click there, no matter what category you were in as the back arrow ran along the whole left side. This is no problem on todays 16x9 screens as it wastes no vertical space.

Having the breadcrumbs is a great visual aid to know how deep you are in the menu structure. But to base the navigation on this only is a very bad UX and should be avoided.

I know it is not ideal to add too many options, but this one deserves to be fixed and possibly made an option so that those who do not like it can turn it off. Personally, I am really struggling with the new way of navigating. This would be equivalent to removing the back-button in the web-browser and tell people to use a drop-down menu with the history of last pages as navigation. It simply do not work. When I build a website, I like adding a breadcrumb to help people navigate. But I never expect people to use that one over their back button if they only want to go one step back.

Replacing a big target with one that is smaller and requires the pointer to be move a bigger distance is also not good for people that has trouble navigating because of poor eyesight. A larger button is easier to see than tiny text.

Reproducible: Didn't try

Steps to Reproduce:
Click on kickoff, go to Applications, Multimedia. You used to be able to move pointer a few pixels and click to get back. Now the movement has to be bigger and more precise.

Actual Results:  
Back arrow/bar missing

Expected Results:  
See the arrow