An end-user should be able to design AWM documents

I believe simple users expect much more styling possibilities on AWM Documents. They can't style awm documents without specific development and it's a complexe task.

This action could take place in 2 moves:

• 1- You add the possibility to define an id/class in the properties of an AWM fields.
  This will improve the sheet for client advanced user to style the output of AWM documents.

• 2- You add a ColorThemeApp like / a css generator to improve the usability of the feature.
  This will fit with multiple user needs.