I noticed Theme script's auto border color is not working properly in some systems.
In my laptop, it does not, and shows only gray taskbar and border if color was set to auto (0, Use wallpaper as Theme color).
(However, In VMware, it works well.)
So I tracked host Win 8.1's registry, and found value ColorizationGlassAttribute is related.
I set ColorizationGlassAttribute to always 0, and it seems to fix the problem.
Before Fix
If,%ProjectName%,Equal,Win8.1SE,Begin
If,%ScrollBox_Color%,Equal,0,Begin
If,%NoWarnROW%,Equal,True,System,ERROROFF
RegWrite,HKLM,0x4,"Tmp_Default\Control Panel\Desktop",AutoColorization,1
End
Else,Begin
If,%ScrollBox_Color%,Equal,1,Set,%ColorDecCode%,-997224561
If,%ScrollBox_Color%,Equal,2,Set,%ColorDecCode%,-997931265
If,%ScrollBox_Color%,Equal,3,Set,%ColorDecCode%,-990742839
If,%ScrollBox_Color%,Equal,4,Set,%ColorDecCode%,-990854400
If,%ScrollBox_Color%,Equal,5,Set,%ColorDecCode%,-997012694
If,%ScrollBox_Color%,Equal,6,Set,%ColorDecCode%,-1001599539
If,%ScrollBox_Color%,Equal,7,Set,%ColorDecCode%,-989882339
If,%ScrollBox_Color%,Equal,8,Set,%ColorDecCode%,-989904832
If,%ScrollBox_Color%,Equal,9,Set,%ColorDecCode%,-989898837
If,%ScrollBox_Color%,Equal,10,Set,%ColorDecCode%,-1005928634
If,%ScrollBox_Color%,Equal,11,Set,%ColorDecCode%,-994020865
If,%ScrollBox_Color%,Equal,12,Set,%ColorDecCode%,-1001082881
If,%ScrollBox_Color%,Equal,13,Set,%ColorDecCode%,-997420801
If,%ScrollBox_Color%,Equal,14,Set,%ColorDecCode%,-995058293
If,%ScrollBox_Color%,Equal,15,Set,%ColorDecCode%,-989855745
//-----------------------------------------------------------------------------------------------------------------------
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationColor,%ColorDecCode%
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationColorBalance,89
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationAfterglow,%ColorDecCode%
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationBlurBalance,1
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,EnableWindowColorization,1
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationGlassAttribute,0
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationAfterglowBalance,10
//-----------------------------------------------------------------------------------------------------------------------
End
After Fix
If,%ProjectName%,Equal,Win8.1SE,Begin
If,%NoWarnROW%,Equal,True,System,ERROROFF
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationGlassAttribute,0
If,%ScrollBox_Color%,Equal,0,Begin
If,%NoWarnROW%,Equal,True,System,ERROROFF
RegWrite,HKLM,0x4,"Tmp_Default\Control Panel\Desktop",AutoColorization,1
End
Else,Begin
If,%ScrollBox_Color%,Equal,1,Set,%ColorDecCode%,-997224561
If,%ScrollBox_Color%,Equal,2,Set,%ColorDecCode%,-997931265
If,%ScrollBox_Color%,Equal,3,Set,%ColorDecCode%,-990742839
If,%ScrollBox_Color%,Equal,4,Set,%ColorDecCode%,-990854400
If,%ScrollBox_Color%,Equal,5,Set,%ColorDecCode%,-997012694
If,%ScrollBox_Color%,Equal,6,Set,%ColorDecCode%,-1001599539
If,%ScrollBox_Color%,Equal,7,Set,%ColorDecCode%,-989882339
If,%ScrollBox_Color%,Equal,8,Set,%ColorDecCode%,-989904832
If,%ScrollBox_Color%,Equal,9,Set,%ColorDecCode%,-989898837
If,%ScrollBox_Color%,Equal,10,Set,%ColorDecCode%,-1005928634
If,%ScrollBox_Color%,Equal,11,Set,%ColorDecCode%,-994020865
If,%ScrollBox_Color%,Equal,12,Set,%ColorDecCode%,-1001082881
If,%ScrollBox_Color%,Equal,13,Set,%ColorDecCode%,-997420801
If,%ScrollBox_Color%,Equal,14,Set,%ColorDecCode%,-995058293
If,%ScrollBox_Color%,Equal,15,Set,%ColorDecCode%,-989855745
//-----------------------------------------------------------------------------------------------------------------------
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationColor,%ColorDecCode%
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationColorBalance,89
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationAfterglow,%ColorDecCode%
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationBlurBalance,1
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,EnableWindowColorization,1
RegWrite,HKLM,0x4,Tmp_Default\Software\Microsoft\Windows\DWM,ColorizationAfterglowBalance,10
//-----------------------------------------------------------------------------------------------------------------------
End
Before Fix

After Fix

Attached fixed Theme.script.