Quick and dirty solution:
Material Settings dialog (Options > Attributes), find the concrete that you want to use, Duplicate it for your new version, couble click the color swatch for Surface color and pick the tint.
Switch from Internal Engine to Lightworks and click the Match with Internal Engine button. (This copies everything, but particularly it copies the Internal Engine surface color to the Lightworks Base Colour). OK out.
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB