Here's the polished version of the Vex Thal map. I've also updated the XML to include the solo zone that's only available during the sig line.
Code:
<ImageStyle Name="exp17_dun_vex_thal_raid_01_0" displayname="Vex Thal: Labyrinth of Solace [Raid] (Level 1)" zonerect="-331, -578, 267, 114" heightmax="5">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_0.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_raid_01_1" displayname="Vex Thal: Labyrinth of Solace [Raid] (Level 2)" zonerect="-331, -578, 267, 114" heightmin="15" heightmax="40">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_1.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_raid_01_2" displayname="Vex Thal: Labyrinth of Solace [Raid] (Level 3)" zonerect="-331, -578, 267, 114" heightmin="85" heightmax="95">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_2.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_raid_01_3" displayname="Vex Thal: Labyrinth of Solace [Raid] (Level 4)" zonerect="-331, -578, 267, 114" heightmin="130">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_3.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_mission_solo_0" displayname="Vex Thal: Shadow Citadel [Advanced Solo] (Level 1)" zonerect="-331, -578, 267, 114" heightmax="5">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_0.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_mission_solo_1" displayname="Vex Thal: Shadow Citadel [Advanced Solo] (Level 2)" zonerect="-331, -578, 267, 114" heightmin="15" heightmax="40">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_1.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_mission_solo_2" displayname="Vex Thal: Shadow Citadel [Advanced Solo] (Level 3)" zonerect="-331, -578, 267, 114" heightmin="85" heightmax="95">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_2.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_sig_qst_0" displayname="Vex Thal: Shadow Citadel (Level 1)" zonerect="-331, -578, 267, 114" heightmax="5">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_0.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_sig_qst_1" displayname="Vex Thal: Shadow Citadel (Level 2)" zonerect="-331, -578, 267, 114" heightmin="15" heightmax="40">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_1.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_sig_qst_2" displayname="Vex Thal: Shadow Citadel (Level 3)" zonerect="-331, -578, 267, 114" heightmin="85" heightmax="95">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_2.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_01_solo" displayname="Vex Thal: Den of Shadows [Solo]" zonerect="-331, -578, 267, 114">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_3.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_01_easy" displayname="Vex Thal: Den of Shadows [Heroic I]" zonerect="-331, -578, 267, 114">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_3.dds" SourceRect="0,0,436,506" />
</ImageStyle>
<ImageStyle Name="exp17_dun_vex_thal_01" displayname="Vex Thal: Den of Shadows [Heroic II]" zonerect="-331, -578, 267, 114">
<ImageFrame Source="images/maps/map_exp17_dun_vex_thal_3.dds" SourceRect="0,0,436,506" />
</ImageStyle>