Green: Eastern Ukraine
Yellow: Donetsk – Lugansk Region
Blue: Western Ukraine and Moldova

According to Russian source:

• Yellow pins – locations of advancing Russian military as of Feb 24
• Red pins: (Kharkov, Kiev and Odessa) – Strong Ukrainian resistance, fighting to continue tomorrow (Feb 25)

It looks like, at this stage, Russians are trying to cut out and secure Eastern Ukraine (East of the Dnieper River) with additional presence of Russian forces in the area of Kiev, Nikolaev and Odessa. It may, however, be a deception map, I don’t have any means to verify this information independently.

Related:

• Putin Crosses the Rubicon. What Next?
• The US Is the Major Instigator of the Ukraine Conflict. The Historical Facts