terminal: Wrong colors using emacs-nox in WT-Ubuntu

By default I use MSYS2 MinTTY and by means of wslbridge I use also this MinTTY for WSL Ubuntu. With both these apps I use a color scheme which I added to the profile.json:

{
            "name" : "base16-default-mod-lighten",
            "foreground" : "#D0D0D0",
            "background" : "#151515",
            "black" : "#151515",
            "red" : "#AC4142",
            "green" : "#90A959",
            "yellow" : "#F4BF75",
            "blue" : "#6A9FB5",
            "purple" : "#AA759F",
            "cyan" : "#75B5AA",
            "white" : "#D0D0D0",
            "brightBlack" : "#505050",
            "brightRed" : "#C25E5E",
            "brightGreen" : "#A6BB7B",
            "brightYellow" : "#F8D5A5",
            "brightBlue" : "#8CB5C6",
            "brightPurple" : "#BE95B5",
            "brightCyan" : "#97C7BE",
            "brightWhite" : "#F5F5F5"
        }

In the same profile.json I added the profiles for MSYS2 bash. I use the same above color scheme for MSYS2 bash and Ubuntu in WT.

In this attachment emacs-nox-sshots.tar.gz there are a few screenshots of emacs-nox running on various systems. As you can see I have the same good result in MinTTY (emacs-nox-mintty.png), Ubuntu in MinTTY (emacs-nox-mintty-Ubuntu.png) and in MSYS2 bash in WT (emacs-nox-WT-msys2.png). Instead in WT Ubuntu I get what I call bad result (emacs-nox-WT-Ubuntu.png).