Steps are available to those Kolams which were animated to begin with (like the one with 6 dots and 6 rows). The design which has lamps and pinwheels has 21 dots in the middle and tapers down to 1 dot on both top and bottom. The other designs you see are member-contributed ones and steps are available as and when they provide it.
Thanks,
lata
In reply to diwali kolam by thiva
In reply to Diwali Kolam by Viji_vishy