paint the pig
v. phr.— «For Office 2007, Microsoft has finally given up on what the company internally refers to as “painting the pig.” For the first time ever, Office has been given a thorough UI overall.» —“Microsoft Office 2007 Review Part 2: What’s New?” by Paul Thurrott Paul Thurrott’s SuperSite for Windows Jan. 28, 2007. (source: Double-Tongued Dictionary)
Further reading
If you’re madder than a peach orchard boar you’re angry indeed, or otherwise engaging in wild, unrestrained behavior similar to boars or pigs being let loose to gorge themselves on fallen fruit. Variations include crazier than a peach...