I've recently pushed a number of commits to github. Here's a brief list of what changed:

• UI layout
• Option to switch off SplineTravel, to use seam concealment alone. Separate retract speed setting for within seam-concealment.
• tessellation logic fix
• add notes field to presets; allow inclusion of filenames into presets

Also, I've added a UI screenshot to the gallery, so that you can take a look of what are the options.