In Style Setting Panel, You can manage following.

Common Style

You can choose which color do you want to use for Flexible Footer Menu.

Default setting is like this.
Default view

When you change this setting, the menu design will change.

Changed some options.
Edit view

Facebook ~ Feedly

In other panel in this section is all about each sns icon.

We set default social color, but you can freely change this.

On some social account such as twitter, there is extra form to work Follow or similar feature.

This example is result of that I changed all sns icon color to #545454.

All icon Backgroud color was changed to #545454.