I'm not clear on what the solution here is (I'd like to set this up too)
TVSeries.xml shows
<remoteColor>FFa6c3e1</remoteColor>
<!-- Watched color -->
<downloadColor>d4d2d2</downloadColor>
<!-- not watched color (normal) -->
<textcolor>FF78ace0</textcolor>
So in theory the episodes should be d4d2d2 (Grey?) when watched and FF78ace0 (white?) when not. they are all showing as white though however. Personally the "icons" are useless to me because my TV isn't large or clear enough to see them at a glance so I'd like to disable them too and just use color codes but I can't get it working...
<remoteColor>FFa6c3e1</remoteColor>
<!-- Watched color -->
<downloadColor>d4d2d2</downloadColor>
<!-- not watched color (normal) -->
<textcolor>FF78ace0</textcolor>
<!-- local file not present color -->
<textcolor2>FF78ace0</textcolor2>