About OpenGL Antialiasing
Everything you draw in Harmony is vector-based, unless you purposely elected to draw as bitmap. When you draw in the Drawing view, notice that your lines may appear jagged. This is caused by the fast real-time display called OpenGL. If you prefer to see smooth lines as you draw, you can enable the antialiasing preference.
Full scene antialiasing is generated by your computer’s graphics card. This antialiasing will not only antialias your drawings, but all your different views in the interface. Full scene antialiasing is an option you can turn on or off; by default, it is disabled.
There is no need to modify your graphic card settings.
NOTE: Full Scene Antialiasing parameters are only valid while you work in your scene. The scene will be rendered to 100% of its resolution regardless of your preference settings or graphic card panel.