Field Controls are complex Controls and their 
Styling Assistants are split into four sections.
Field
The common styling properties can be set on the containing element for the Label, Editor and Help sections of a Field Control.
The Label, Editor and Help sections can be independantly hidden or displayed and the gap between them in the browser can be configured, along with their vertical alignment.
Label Cell
Configure the common text styling properties for the label.
Editor Cell
Configure the common text, background and border properties for the editor.
Help
If the help section is displayed:
- Underneath the editor its common text styling properties and horizontal text alignment can be configured.
- As a popup a range of properties can be configured to customise the look of the popup window and its corresponding trigger.