http://musicbee.niblseed.com/V2/MusicBee_Exe_Patched.zipthese have been done (i have some time tomorrow and will do some more but definitely wont do all of these)
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>