当時のcfgファイル残ってたわ
該当箇所を抜粋

MENUCOLOR=" .* holding"=orange
MENUCOLOR=" blessed .* holding"=lightcyan
MENUCOLOR=" uncursed .* holding"=cyan
MENUCOLOR=" cursed .* holding"=red
MENUCOLOR="Do what?"=none
MENUCOLOR="Take something out of"=none
MENUCOLOR="Put something into"=none
MENUCOLOR="Put something into .* holding"=lightcyan
MENUCOLOR=" bag of tricks"=orange
MENUCOLOR=" wand of cancellation"=orange

MENUCOLOR="Put something into .* holding"=lightcyan
で、軽量化のカバン(bag of holding)に何か入れようとすると注意が喚起される