update config

ElvUI_Config/Libraries/AceConfig-3.0/AceConfigDialog-3.0/AceConfigDialog-3.0.lua

@@ -1107,7 +1107,8 @@ local function FeedOptions(appName, options,container,rootframe,path,group,inlin
 						control:SetImageSize(width, height)
 						control:SetLabel(name)
 					else
-						control = gui:Create("Button")
+						local buttonElvUI = GetOptionsMemberValue("buttonElvUI",v, options, path, appName)
+						control = gui:Create(buttonElvUI and "Button-ElvUI" or "Button")
 						control:SetText(name)
 					end
 					control:SetCallback("OnClick",ActivateControl)

ElvUI_Config/Libraries/AceConfig-3.0/AceConfigRegistry-3.0/AceConfigRegistry-3.0.lua

@@ -91,6 +91,8 @@ local basekeys={
 	func=optmethodfalse,
 	arg={["*"]=true},
 	width=optstring,
+	-- below here were created by ElvUI --
+	buttonElvUI=optmethodbool,
 }
 
 local typedkeys={