This story about Boris Johnson redecorating in Downing Street is too stupid not to be a deliberate distraction. 10 Downing Street, along with 11 and others, are government buildings. Their maintenance should be paid for with government money. And since they are also places where people live, it’s not unreasonable that there should be money available for redecoration when the resident changes.
And I guess it’s also fair that the new resident can pay extra for the work, out of their own money, if they choose to do so. Any money coming from other sources would have to be declared in the Register of Members' Financial Interests.
This is all normal. If Johnson has failed to declare contributions from his party or donors, that’s the offence. It’s pretty straightforward.
So the fact that it’s filling the headlines with leaks and all, suggests it’s a smokescreen for something else.