MonoDevelop runs on Linux quite well (in case you use a light theme - see MonoDevelop 4.0 and dark themes). Many developers from Xamarin are Linux users and run MonoDevelop on Linux every day (but without a dark theme :)).
It is possible to get a very good looking monodevelop environment on Linux as well. I'll try to explain how I do it and show a screenshot as 'proof of concept' :)
Parallel Mono EnvironmentTo get the latest mono you'll need to build a parallel mono environment. This is far easier than it sounds and wont affect the mono your distribution has. (But you need to install a mono in your distribution for building a mono from the repositories)
First you need a script for 'switching' to the parallel environment. I use this script for doing it:
#!/bin/bash MONO_PREFIX=/opt/mono GNOME_PREFIX=/opt/gnome export DYLD_LIBRARY_PATH=$MONO_PREFIX/lib:$DYLD_LIBRARY_PATH export LD_LIBRARY_PATH=$MONO_PREFIX/lib:$LD_LIBRARY_PATH export C_INCLUDE_PATH=$MONO_PREFIX/include:$GNOME_PREFIX/include export ACLOCAL_PATH=$MONO_PREFIX/share/aclocal export PKG_CONFIG_PATH=$MONO_PREFIX/lib/pkgconfig:$GNOME_PREFIX/lib/pkgconfig PATH=$MONO_PREFIX/bin:$PATH /opt/monodevelop/bin/monodevelop
The best way is to build mono, gtk# (gtk-sharp-2-12-branch) and gnome-sharp from the sources found on github(I hope you're familiar with git):
For building mono & gtk-sharp your distribution needs some prerequisites - either you follow what the configure/bootstrap scripts tell you or try something like sudo apt-get build-dep monodevelop.
You need to run the configure/bootstrap scripts with the option --prefix=/opt/mono - and then it installs 'as usual' with make/make install.
Get monodevelop from https://github.com/mono/monodevelop then switch to your parallel mono environment and type inside the monodevelop directory: ./configure ; make
And just run it with "make run" - that's all.
Some tips: Adjust the fonts (I use Source Code Pro for the text editor and Source Sans Pro almost everywhere else).
Get the Xamarin gtk theme from https://github.com/mono/xamarin-gtk-theme (you may need to set the prefix here to --prefix=/usr) and enable it in Environment->Language.
The end result should like this:
Ok I agree that there is a drawing error in the tab bar - but that's due a graphic device driver bug (it should render a horizontal linear gradient - chrome tabs suffer from the same bug on my machine).
It's hard to get a .NET environment running on Linux these days - but it's doable :). Btw. we could need help improving the monodevelop Linux client - esp. dark theme support is lacking a bit :)