KDE software has a lot of different visual styles for sidebars, many ably illustrated in T11093: Improve Consistency across the Board:
Let's unify these to have the following characteristics:
- White background (with default breeze color scheme; obviously it should follow the color scheme
- Full width and height; top touches titlebar/tools area, bottom touches bottom window edge or status bar, left side touches left window edge, etc.
- Single-pixel vertical line separates the sidebar from the content area on the right
- When icons are large, they should be colorful: T10165: Large category icons should all be colorful
Furthermore, these three kinds of sidebars should be preferred when used to navigate application content:
- Lists should be used when there are many possible views that would not fit when using a big icon.
- Big Squares should be used when there are a limited number of possible views that usually fit the window heigh using big icons.
- Tabs should only be used on application views that are user-editable (eg: when it's possible to open a new tab or close another).
Thus, the following applications could need to be changed:
|Application||Current state||Desired state|
|Kbruch||Toolbar buttons||Big squares|
|Kontact||Toolbar buttons||Big squares|
|Ktorrent||Toolbar buttons||Big squares|
|Kaffeine||Toolbar buttons||Big squares|
|Skrooge||List in panel||Big squares|
|Edit Window-Specific Settings||Tabs||Big squares|