diff --git a/themes/dremora/wall.png b/themes/dremora/wall.jpg
similarity index 100%
rename from themes/dremora/wall.png
rename to themes/dremora/wall.jpg
diff --git a/themes/holo/wall.png b/themes/holo/wall.jpg
similarity index 100%
rename from themes/holo/wall.png
rename to themes/holo/wall.jpg
diff --git a/themes/multicolor/wall.png b/themes/multicolor/wall.jpg
similarity index 100%
rename from themes/multicolor/wall.png
rename to themes/multicolor/wall.jpg
diff --git a/themes/powerarrow/wall.png b/themes/powerarrow/wall.jpeg
similarity index 100%
rename from themes/powerarrow/wall.png
rename to themes/powerarrow/wall.jpeg
diff --git a/themes/steamburn/wall.png b/themes/steamburn/wall.jpg
similarity index 100%
rename from themes/steamburn/wall.png
rename to themes/steamburn/wall.jpg
diff --git a/themes/vertex/wall.png b/themes/vertex/wall.jpg
similarity index 100%
rename from themes/vertex/wall.png
rename to themes/vertex/wall.jpg