I found the dark edition quite useable, but not 'quite right' for me personally, so set about tweaking it a little bit.
If you like, you can either use the ETW files attached with this code...
<TAGWINDOW>
<Entry Name="Group" Bitmap="TagWindow_Group.png" NumberImages="2" Columns="20,?-Flex,10" Rows="1,?-Flex,1" Cells="B1-HTILE,B2-HTile,B3-HTILE" />
<Entry Name="Field" Bitmap="TagWindow_Field.png" Scale="4" NumberImages="2" Rows="4,?-Flex,4" />
<Entry Name="FieldLabel" Bitmap="TagWindow_FieldLabel.png" Scale="4" NumberImages="1" Columns="?-Flex" Rows="?-Flex" Cells="A1-Tile" />
</TAGWINDOW>
Also in the attached zip is a greyscaled selection image which, for me, works better than the default blue. It just needs a line added to the list section:
<Entry Name="Lasso" Bitmap="List_Lasso.png" NumberImages="1" Margins="3,3,3,3" />
I put the psd files for the etw in there too. Entirely optional and free to use as you wish. I do not need any credit/mention or otherwise.