Improve branding support
Updated reference to md-addins
Updated reference to md-addins
[Ide] The ErrorListPad now respects the 'Copy' command

If you use the 'Copy' command while an item is selected, it will now
get copied to the clipboard.

Fixes #7756.
[build] Bump md-addins
bump md-addins
Update gtkrc
Properly fix black completion window issue on windows

The DestIn operator was not properly used in the !SupportsAlpha case.
When using DestIn, everything covered by the source is left
intact. Since the source has no alpha, it is a solid color, so the
whole surface was left intact, leaving it in an uninitialized state.
Improved check for transparency support

Checking for Screen.IsComposited seems to be more reliable
than getting checking if RgbaColormap is null.
[Ide] Fix gtk-criticals on startup

Don't load the main window icons on Mac, since Mac doesn't show them
[Ide] Hide pad placeholder when switching layout

Fixes 7628 - Docking window UI artefact remains
[Ide] Improve handling of status area messages

Make sure an old message from a status bar context
is not re-shown when the context is reactivated.
Fixes 7632 - Solution Loaded notification shown every time
a file is opened, and other similar issues.
[version-checks] bump md-addins dep
Fixed 'Bug 7739 - Completion cuts end of field names '.
[TextEditor] Fixed potential search engine crash.
[UIRefresh] Center status area on window when possible
[UIRefresh] Use windows specific GTKRC theme
[UIRefresh] Make build animation use concentric rings concept
[UIRefresh] Replace newline characters from incomming messages
[UIRefresh] Start working on status area themes