Good job !

At first glance, it’s a good plugin.
The settings page interface wastes screen space and could be more compact.
What’s more, there are more style parameters (colors, gradients/shadows, borders…) than for positioning. Custom code functions make up for the lack… for those who know how to code.
The default presets are a little outdated and could be more “up-to-date” or include minimal/flat designs.
At Dev’s : Please take these comments in a constructive way.
Anyway, it’s a good job. Thx.