Powerline-multiline improvements

- Changed some default CHARS for better font compatibility
- Make some CHARS user customizable
- Minor fixes

themes/powerline-multiline/powerline-multiline.theme.bash

@@ -3,16 +3,16 @@
 THEME_PROMPT_SEPARATOR=""
 THEME_PROMPT_LEFT_SEPARATOR=""
 
-SHELL_SSH_CHAR=" "
+SHELL_SSH_CHAR=${SHELL_SSH_CHAR:=" "}
 SHELL_THEME_PROMPT_COLOR=32
-SHELL_SSH_THEME_PROMPT_COLOR=208
 
-VIRTUALENV_CHAR="⒫ "
+VIRTUALENV_CHAR=${POWERLINE_VIRTUALENV_CHAR:="❲p❳ "}
+CONDA_VIRTUALENV_CHAR=${POWERLINE_CONDA_VIRTUALENV_CHAR:="❲c❳ "}
 VIRTUALENV_THEME_PROMPT_COLOR=35
 
 SCM_NONE_CHAR=""
-SCM_GIT_CHAR=" "
+SCM_GIT_CHAR=${POWERLINE_SCM_GIT_CHAR:=" "}
-PROMPT_CHAR="❯"
+PROMPT_CHAR=${POWERLINE_PROMPT_CHAR:="❯"}
 
 SCM_THEME_PROMPT_CLEAN=""
 SCM_THEME_PROMPT_DIRTY=""
@@ -50,8 +50,7 @@ function set_rgb_color {
 function powerline_shell_prompt {
     SEGMENT_AT_RIGHT=0
     if [[ -n "${SSH_CLIENT}" ]]; then
-        SHELL_PROMPT="${USER}@${HOSTNAME}"
+        SHELL_PROMPT="${SHELL_SSH_CHAR}${USER}@${HOSTNAME}"
-        SHELL_THEME_PROMPT_COLOR="${SHELL_SSH_THEME_PROMPT_COLOR}"
     else
         SHELL_PROMPT="${USER}"
     fi
@@ -66,7 +65,7 @@ function powerline_virtualenv_prompt {
 
     if [[ -n "$CONDA_DEFAULT_ENV" ]]; then
         environ="$CONDA_DEFAULT_ENV"
-        VIRTUALENV_CHAR="⒞"
+        VIRTUALENV_CHAR=${CONDA_VIRTUALENV_CHAR}
     elif [[ -n "$VIRTUAL_ENV" ]]; then
         environ=$(basename "$VIRTUAL_ENV")
     fi