Selecting Language fromt the menu bar make the color scheme to go wild

[Daniele "OpenNingia" Simonetti]

* Use a custom styler.xml file with your favorite color scheme
* Open any file, e.g. main.cpp
* Observe that it gets correct syntax highlight and colors
* Hit Language -> C -> C++ from menu

What to expect:
nothing changes:

What happens instead:
the color scheme is completely messed up.

screenshots attached

[Justin Kinnaird (teklad)]

I just added a pull request that has the fix for this issue in place.... Sometimes direct function usage == bad. :)

[Daniele "OpenNingia" Simonetti (oppifjellet)]

Now it's better, however there are still some glitches ( like the margin, folding, line number column that changes color )

[Justin Kinnaird (teklad)]

From what I can see the margins font isn't getting updated on subsequent lexer changes. My guess is the margin font changing when the lexer changes is probably a Qscintilla quirk. Easy enough to work around though.