new elements (requires 2.0.4636+ for all the below)
to display horizontal lines for each row in the main and now playing panel:
<element id="Content[TrackDetail].ItemSeparatorLine" fg="0,200,10" />
<element id="Content[AlbumAndTracks].ItemSeparatorLine" fg="255,10,10" />
to adjust the position of the tabs bar when docked in the caption bar - although i made some changes to the default and suggest you check the new behavior before changing this
<element id="TabsInCaptionOffset">1</element>
to override the Playing/Selected Track bar in the Now Playing panel:
<element id="NowPlayingPanel.TabSelector.Default" bg="240,20,240" bg2="225,225,25" fg="0,0,0" bdr="20,220,220" />
<element id="NowPlayingPanel.TabSelector.Highlight" bg="20,20,200" />
<element id="NowPlayingPanel.TabSelector.Lowlight" bg="220,20,220" fg="160,10,160" />
to override the tabs bar when docked in the caption bar and the player is docked at the top:
<element id="TabsBar.TabInCaptionBarTop.Default" bg="15,215,215" fg="30,30,130" bdr="170,10,170" />
<element id="TabsBar.TabInCaptionBarTop.Highlight" bg="145,245,5" fg="220,220,20" bdr="10,10,190" />
for bitmap skins only, to override the location of the track progress text - it will split the progress to the left of the progress bar and the duration to the right of the progress bar (see the beeTunes skin). Normally you would set the Y offset to 0 but you might want to change it.
<element id="PlayerSplitProgressYOffset">0</element>
override the command buttons in the main panel header bar:
<element id="Panel.CommandButtonOverride" bg="235,1,135" fg="5,255,255" />