Sadly, the line width depends on the widget's DPI, which seems to
even cause uneven lines on Windows, where virtual printers claim
high DPI. It might also be an unrelated problem.
Similarly, selected objects are exported highlighted.
Other than that, it works quite well.
Add a manifest to make the print dialog look nice with the older
GTK+ bundle we depend upon.
The RC file could theoretically be scanned for /\s+"([^"]+)"\s*$/,
unescaped, and the results configure_file()-stamped.
* Add automatic icon generation to CMakeLists.txt.
These icons are generated from the scalable SVG image.
* Add pregenerated icons to the tree.
* Link an icon to the Windows binary.
