see bug #300757 for screenshot.

http://techbase.kde.org/Projects/Usability/HIG/Capitalization
"Use title capitalization in the following cases: 
* Window and dialog box titles
[...]
* Button labels"

-> window title and button labels wrong

http://techbase.kde.org/Projects/Usability/HIG/Buttons
"Prefer using icons on buttons only for ok, apply, cancel like actions."

-> buttons should use icons as they indicate approval or disagreement of the above (app selection)

http://techbase.kde.org/Projects/Usability/HIG/Dialogs
"Set input focus on confirmation button."

-> not the case

http://techbase.kde.org/Projects/Usability/HIG/Lists_Rich_Lists
"Provide an accelerator key in the label that allows the user to give focus directly to the list."

-> not the case ... also a (semi)colon at the end of the sentence would be nice

Reproducible: Always

Steps to Reproduce:
1. switch to activity that wants to lunch apps (photos acitivity)
Actual Results:  
fugly dialog

Expected Results:  
proper dialog

http://techbase.kde.org/Projects/Usability/HIG