Hi developers,

                        how can we change the default Salesforce CRM UI.

defaultly some look and feel is observing in CRM but is possible to change as we customize some social networks themes. How can we? plz suggest options.

As many web applications like gmail, yahoo or hotmail offer an interface where in you select any styling and in seconds the entire interface color, look and feel changes i.e., Applying THEMES. 

An option inside setup to select from a set of pre-defined themes. 

Also an option to define your custom themes i.e., option to select hex codes for various components used in rendering the Salesforce User Interface. 

Once this feature is successful we can create a developer discussion where users can submit themes and rest users can leverage that if they want to. 

Interface Styling as a SERVICE. Promote the Idea

@ http://ideas.salesforce.com/article/show/10098241/User_Interface_Themes_or_Custom_Themes