Allow theming to be disabled (eg for old terminals)
* Only load a theme file if `bobby` has been set
* Only alter `PS1` if `\[[1;34m\]\[$(scm_char)\]\[[0;32m\]\[$(scm_prompt_info)\]\[[0;34m\]\[$(rvm_version_prompt)\] \[[33;40m\]\h \[[39m\]in \[[0;32m\]\w \[[39m\]\[\n\[[0;32m\]→\[[39m\] ` has a value
diff --git a/lib/appearance.bash b/lib/appearance.bash
index 4b1f568..f723511 100644
--- a/lib/appearance.bash
+++ b/lib/appearance.bash
@@ -8,4 +8,6 @@
export LSCOLORS='Gxfxcxdxdxegedabagacad'
# Load the theme
-source "$BASH/themes/$BASH_THEME/$BASH_THEME.theme.bash"
\ No newline at end of file
+if [[ $BASH_THEME ]]; then
+ source "$BASH/themes/$BASH_THEME/$BASH_THEME.theme.bash"
+fi
\ No newline at end of file