Webdynpro Business Graphics Editing

Hello gurus,

I got the requirement of embedding Business Graphics on the webdynpro views. I have done the same. I am getting the business graphics changes on run time with values. Now I got the requirement to change the color of categories from default. As in default color for categories comes as : Blue -- Green -- Yellow --  etc .

Now I need the colors for categories like : Green -- Blue -- Red .

Please let me know how to edit the customizing to get the proper color for categories.

I have checked SDN but didn't get solution for the same.

Here In the context I have taken one Node say : Active type string , Under this node I have taken two attributes. One is Description type string , 2nd active_att type I.

I have set one supply function for the Active node say: supply_Active.

Under that supply_active method, my code is as below:

method SUPPLY_ACTIVE .

data:
lt_active type if_OVERVIEW=>elements_active,
active like line of lt_active,
v_rnd type I.

define random_genrate.
CALL FUNCTION 'GENERAL_GET_RANDOM_INT'
EXPORTING
RANGE = 90
IMPORTING
RANDOM = v_rnd.
end-of-definition.
active-description = 'In Line'.
random_genrate.
active-active_attribute = v_rnd.
insert active into table lt_active.

active-description = 'Critical'.
random_genrate.
active-active_attribute = v_rnd.
insert active into table lt_active.


active-description = 'Escalated'.
random_genrate.
active-active_attribute = v_rnd.
insert active into table lt_active.

node->bind_elements( lt_active ).
*
endmethod.

Please help.

Thanks.