Its not that easy to config mRemoteNG custom color themes, not like XShell which is really convinent. There are many options to select and I will give two favorite one.
Step 1: create a reg file such as default.reg with content like below example.
Step 2: double click the file and confirm it.
Step 3: we can find the new settings under PuTTY session settings in Connections panel.
example 1:
Windows Registry Editor Version 5.00
; Colors are from eighties theme of
; https://github.com/benjojo/base-16-putty
[HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions\Default%20Settings]
"FullScreenOnAltEnter"=dword:00000001
"Font"="SimSun"
"FontIsBold"=dword:00000000 ;If Bold Font
"FontCharSet"=dword:00000000
"FontHeight"=dword:0000000c
"FontQuality"=dword:00000003
"FontVTMode"=dword:00000004
"UseSystemColours"=dword:00000000
"TryPalette"=dword:00000000
"ANSIColour"=dword:00000001
"Xterm256Colour"=dword:00000001
"BoldAsColour"=dword:00000000 ;If Bold color effect
"LineCodePage"="UTF-8"
"UTF8Override"=dword:00000001
"X11Forward"=dword:00000001
"Colour0"="95,156,146" ;Text
"Colour1"="95,156,146"
"Colour2"="07,36,47" ;BackGround
"Colour3"="07,36,47"
"Colour4"="217,230,242" ;
"Colour5"="217,230,242" ;Cursor
"Colour6"="0,0,0"
"Colour7"="242,247,8" ;(Insall-Module Az) -AllowClobber
"Colour8"="170,0,34" ;(Platform Win) Error Print
"Colour9"="219,189,189"
"Colour10"="00,198,00" ;Execute File
"Colour11"="00,128,00"
"Colour12"="184,184,122"
"Colour13"="255,187,0" ;Insall-Module (Az)
"Colour14"="128,128,255" ;Directory
"Colour15"="128,128,255"
"Colour16"="184,122,184"
"Colour17"="219,189,219"
"Colour18"="122,184,184"
"Colour19"="189,219,219"
"Colour20"="0,119,153" ;(Insall-Module) Az
"Colour21"="0,0,255"
example 2:
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions\Ubuntu]
"FullScreenOnAltEnter"=dword:00000001
"Font"="SimSun"
"FontIsBold"=dword:00000000 ;If Bold Font
"FontCharSet"=dword:00000000
"FontHeight"=dword:0000000c
"FontQuality"=dword:00000003
"FontVTMode"=dword:00000004
"UseSystemColours"=dword:00000000
"TryPalette"=dword:00000000
"ANSIColour"=dword:00000001
"Xterm256Colour"=dword:00000001
"BoldAsColour"=dword:00000000 ;If Bold color effect
"LineCodePage"="UTF-8"
"UTF8Override"=dword:00000001
"X11Forward"=dword:00000001 "Colour0"="95,156,146" ;Text
"Colour1"="95,156,146"
"Colour2"="48,10,36" ;BackGround
"Colour3"="07,36,47"
"Colour4"="217,230,242" ;
"Colour5"="217,230,242" ;Cursor
"Colour6"="0,0,0"
"Colour7"="38,38,38"
"Colour8"="184,122,122"
"Colour9"="219,189,189"
"Colour10"="00,128,00" ;Execute File
"Colour11"="00,128,00"
"Colour12"="184,184,122"
"Colour13"="219,219,189"
"Colour14"="128,128,255" ;Directory
"Colour15"="128,128,255"
"Colour16"="184,122,184"
"Colour17"="219,189,219"
"Colour18"="122,184,184"
"Colour19"="189,219,219"
"Colour20"="217,217,217"
"Colour21"="255,255,255"