IViewTrayColor 
Displays the color value for the iView's Family attribute.
The color values are generally defined in the portal core iView on which all iViews are based (, or by object ID ).
This core iView defines the Family attribute (com.sap.portal.iView.family).
For the Family attribute, the following meta-attributes are defined:
validvalues: A list of values for this attribute (Group_0, Group_1, and so on).
validvalueTitle<n>: The display title for each valid value. Defined for each valid value in the validvalues meta-attribute (validvalueTitle0, validvalueTitle1, and so on). The meta-attribute is of the text type, so it can be localized.
Color<n>: The color for each valid value. Defined for each valid value in the validvalues meta-attribute (Color0, Color1, and so on).
To set the display name or the color of each iView family name, set the validvalueTitle or Color meta-attribute for each family name.
For example, to create a group of iViews and to display these iViews with a red iView tray, set the following meta-attributes for the Family attribute of the core iView:
validvalues: Group_4, for the Human Resources iViews.
Specify the length of the valid value (8) in the following format:8/Group_4.
validvalueTitle4: Human Resources
Color4: #FF0000
Example
<lyt:containerWithTrayDesign id="column1">
<div style="background-color:<lyt:IViewTrayColor/>">
<lyt:IViewToggleOpen>
<lyt:IViewFamily/> - <lyt:IViewTitle/>
</lyt:IViewToggleOpen>
<lyt:IViewToggleClose>
<lyt:IViewFamily/>
</lyt:IViewToggleClose>
<lyt:IViewExpand>
<img src="<%=expand%>">
</lyt:IViewExpand>
</div>
<lyt:IViewContent/>
</lyt:containerWithTrayDesign>