This PR sets QComboBox::AdjustToContents instead of default QComboBox::AdjustToContentsOnFirstShow for wallet selectors.
Before (in master):

After (with this PR):

This PR sets QComboBox::AdjustToContents instead of default QComboBox::AdjustToContentsOnFirstShow for wallet selectors.
Before (in master):

After (with this PR):

utACK ca91661a, this was on my to do list.
Is the color of this GUI also going to be changed to this dark color?
Is the color of this GUI also going to be changed to this dark color?
No. There are different Qt versions. System-wide Qt handles dark theme of my DE.
tACK ca91661 on macOS 10.14.2 (qt 5.12.0)
Note that on macOS if the window is too small to fit the longest wallet name between "Transactions" and the edge of the screen, the wallet selector turns into ">>" and appears below the other tabs. i.e:

However that section folds up when you mouse away 👍
Other screenshots of ca91661 usage:
<img width="765" alt="after selected before fold" src="https://user-images.githubusercontent.com/863730/51369133-29c89400-1b2d-11e9-8353-0800225213fa.png">
Not sure if related but I'm having this:

It only shows full wallet name (path) if it's the current.