PROMPT_DIR color/bold on last dir & color for sep.

You can now set the last dir to have a custom color with
`POWERLEVEL9K_DIR_PATH_HIGHLIGHT_FOREGROUND` and whether it will be bold
with `POWERLEVEL9K_DIR_PATH_HIGHLIGHT_BOLD=true`. You can also set a
custom separator color with `POWERLEVEL9K_DIR_PATH_SEPARATOR_FOREGROUND`.

README.md

@@ -421,6 +421,10 @@ You can also configure the `dir` segment to show when you are in a directory wit
 |----------|---------------|-------------|
 |`POWERLEVEL9K_DIR_SHOW_WRITABLE`|`false`|If set to `true` and you are in a directory that you do not have write permissions for, this segment will display a lock icon and enter the `NOT_WRITABLE` state (which can be customized per [our usual process](https://github.com/bhilburn/powerlevel9k/wiki/Stylizing-Your-Prompt#segment-color-customization)). Note that this functionality is also available in a separate segment, `dir_writable`.|
 
+If you want to customize the last directory of the path, you can now set `POWERLEVEL9K_DIR_PATH_HIGHLIGHT_FOREGROUND` to a custom color and/or `POWERLEVEL9K_DIR_PATH_HIGHLIGHT_BOLD=true` to display that part in bold.
+
+You can also color the separator separately by setting the color using `POWERLEVEL9K_DIR_PATH_SEPARATOR_FOREGROUND`.
+
 ##### disk_usage
 
 The `disk_usage` segment will show the usage level of the partition that your current working directory resides in. It can be configured with the following variables.

powerlevel9k.zsh-theme

@@ -838,18 +838,12 @@ prompt_dir() {
     esac
   fi
 
+  local path_opt=$current_path # save state of path for highlighting and bold options
+
   if [[ "${POWERLEVEL9K_DIR_OMIT_FIRST_CHARACTER}" == "true" ]]; then
     current_path="${current_path[2,-1]}"
   fi
 
-  if [[ "${POWERLEVEL9K_DIR_PATH_SEPARATOR}" != "/" ]]; then
-    current_path="$( echo "${current_path}" | sed "s/\//${POWERLEVEL9K_DIR_PATH_SEPARATOR}/g")"
-  fi
-
-  if [[ "${POWERLEVEL9K_HOME_FOLDER_ABBREVIATION}" != "~" ]]; then
-    current_path="$( echo "${current_path}" | sed "s/^~/${POWERLEVEL9K_HOME_FOLDER_ABBREVIATION}/")"
-  fi
-
   typeset -AH dir_states
   dir_states=(
     "DEFAULT"         "FOLDER_ICON"
@@ -865,6 +859,34 @@ prompt_dir() {
   elif [[ $(print -P "%~") == '~'* ]]; then
     current_state="HOME_SUBFOLDER"
   fi
+
+  local bd dir_state_foreground dir_state_user_foreground
+  [[ -n "${POWERLEVEL9K_DIR_PATH_HIGHLIGHT_BOLD}" ]] && bd="%B" || bd=""
+
+  local dir_state_user_foreground="POWERLEVEL9K_DIR_${current_state}_FOREGROUND"
+  local dir_state_foreground="${(P)dir_state_user_foreground}"
+  [[ -z "${dir_state_foreground}" ]] && dir_state_foreground="${DEFAULT_COLOR}"
+
+  if [[ -n "${POWERLEVEL9K_DIR_PATH_HIGHLIGHT_FOREGROUND}" ]]; then
+    if [[ $path_opt == "/" || $path_opt == "~" || $(dirname $path_opt) == "/" || ${POWERLEVEL9K_DIR_OMIT_FIRST_CHARACTER} ]]; then
+      current_path="$bd%F{$POWERLEVEL9K_DIR_PATH_HIGHLIGHT_FOREGROUND}$current_path%F{$dir_state_foreground}"
+    else
+      current_path="$(dirname $current_path)/$bd%F{$POWERLEVEL9K_DIR_PATH_HIGHLIGHT_FOREGROUND}$(basename $current_path)%F{$dir_state_foreground}"
+    fi
+  fi
+
+  if [[ -n "${POWERLEVEL9K_DIR_PATH_SEPARATOR_FOREGROUND}" && $path_opt != "/" ]]; then
+    current_path="$( echo "${current_path}" | sed "s/\//%F{$POWERLEVEL9K_DIR_PATH_SEPARATOR_FOREGROUND}\/%F{$dir_state_foreground}/g")"
+  fi
+
+  if [[ "${POWERLEVEL9K_DIR_PATH_SEPARATOR}" != "/" && $path_opt != "/" ]]; then
+    current_path="$( echo "${current_path}" | sed "s/\//${POWERLEVEL9K_DIR_PATH_SEPARATOR}/g")"
+  fi
+
+  if [[ "${POWERLEVEL9K_HOME_FOLDER_ABBREVIATION}" != "~" && ! ${POWERLEVEL9K_DIR_OMIT_FIRST_CHARACTER} ]]; then
+    current_path="$( echo "${current_path}" | sed "s/~/${POWERLEVEL9K_HOME_FOLDER_ABBREVIATION}/1")"
+  fi
+
   "$1_prompt_segment" "$0_${current_state}" "$2" "blue" "$DEFAULT_COLOR" "${current_path}" "${dir_states[$current_state]}"
 }