diff --git a/themes/calvin/calvin.theme.bash b/themes/calvin/calvin.theme.bash
new file mode 100644
index 00000000..9ab3857d
--- /dev/null
+++ b/themes/calvin/calvin.theme.bash
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+SCM_NONE_CHAR=''
+
+SCM_THEME_PROMPT_DIRTY=" ${red}✗"
+SCM_THEME_PROMPT_CLEAN=" ${bold_green}✓"
+SCM_THEME_PROMPT_PREFIX=" |"
+SCM_THEME_PROMPT_SUFFIX="${green}|"
+
+
+GIT_THEME_PROMPT_DIRTY=" ${red}✗"
+GIT_THEME_PROMPT_CLEAN=" ${bold_green}✓"
+GIT_THEME_PROMPT_PREFIX=" ${green}|$(scm_char) "
+GIT_THEME_PROMPT_SUFFIX="${green}|"
+
+RVM_THEME_PROMPT_PREFIX="|"
+RVM_THEME_PROMPT_SUFFIX="|"
+
+PROMPT_END_CLEAN="\$"
+PROMPT_END_DIRTY="${red}\$${reset_color}"
+
+function prompt_end(){
+    echo -e "$PROMPT_END"
+}
+
+function prompt_command() {
+    if [[ $? -eq 0 ]]; then PROMPT_END=$PROMPT_END_CLEAN
+    else PROMPT_END=$PROMPT_END_DIRTY
+    fi
+    PS1="${yellow}$(ruby_version_prompt)${purple}\u@\h${reset_color}:\W${green}${bold_cyan}${green}$(scm_prompt_info) ${reset_color}$(prompt_end) "
+}
+
+PROMPT_COMMAND=prompt_command;
\ No newline at end of file