I still don't get why the IS2 has the old icons.
It's been mentioned in this forum before. The icons used in the HD Star were originally developed for HD. However, they were also used in SD, but the results didn't look as expected in standard definition, which is why they were changed to the icons currently used in both the SD feed (national & Intellistar) and the national HD feed. However, since this particular set of icons was developed specifically for HD, that's the set that is being used for the HD Star.