Possible to make the purchase confirmation go away faster it locks screen and lingers for players after purchasing items?

I think the line of code you are looking for is @802 and 803.

            UI.CreateButton(ref container, UIMain, uiColors["buttonbg"], msg("cancelSale"), 16, "0.75 0.34", "0.9 0.39", "SRUI_CancelSale");
            UI.CreateButton(ref container, UIMain, uiColors["buttonbg"], msg("confirmSale"), 16, "0.55 0.34", "0.7 0.39", $"SRUI_Sell {shortname} {skinId} {amount}");​

blacktux

I think the line of code you are looking for is @802 and 803.

            UI.CreateButton(ref container, UIMain, uiColors["buttonbg"], msg("cancelSale"), 16, "0.75 0.34", "0.9 0.39", "SRUI_CancelSale");
            UI.CreateButton(ref container, UIMain, uiColors["buttonbg"], msg("confirmSale"), 16, "0.55 0.34", "0.7 0.39", $"SRUI_Sell {shortname} {skinId} {amount}");​

I think the "16" as shown in the paste is the number you want to change. 

Changed 16 to 1 and also 0 with no changes at all.

By the way here is an image of what I'm trying to make go away quicker after an item purchase inside of ServerRewards.