Coloring of a few items to match default War colors....

waaghbar\waaaghbar_stats\waaaghbar_stats.lua

Change line 5 and 6 from
   Stats.Exp = Stats.Waaagh:NewElement("Exp" 200, L"Exp", { r = 255, g = 255, b = 255 }, 00052)
   Stats.Rnw = Stats.Waaagh:NewElement("Rnw" 190, L"Rnw", { r = 255, g = 255, b = 255 }, 00045)

To
   Stats.Exp = Stats.Waaagh:NewElement("Exp" 200, L"Exp", { r = 236, g = 124, b = 5 }, 00052)
   Stats.Rnw = Stats.Waaagh:NewElement("Rnw" 190, L"Rnw", { r = 194, g = 56, b = 153 }, 00045)

(Colors from default interface file defaultcolor.lua

For money colors....
Change the lines 5,6,7 in waaaghbar_money.lua to
   Money.Gold = Money.Waaagh:NewElement("Gold" 35, L"000", { r = 248, g = 205, b = 74 }, 00046)
   Money.Silv = Money.Waaagh:NewElement("Silv" 35, L"000", { r = 219, g = 224, b = 228 }, 00047)
   Money.Bras = Money.Waaagh:NewElement("Bras" 35, L"000", { r = 195, g = 124, b = 78 }, 00048)

(Color taken from a screenshot, selecting an 'averaged' pixel in each of the icons for gold, silver, and copper)