Recently the Yomiuri News on-line reported the following:
On the 19th at night, lighting testing was carried out that would turn on for the first time all the light emitting diode (LED) bulbs totalling 1995 in number installed on the tower of the Tokyo Sky Tree (Sumida district, Tokyo) which was scheduled to be opened on May 22.
The testing was started at around 7:00 p.m. and the Tree was colored with light blue called "essence (iki)" which had the imagine of Sumida River; and with purple called "elegance (miyabi)".
At the commencement of business on day one, it was scheduled to perform "elegance" and "essence" lighting.
For sure the Tokyo Sky Tree is a tourist attraction, both in the day time and at night.