feat: make zsh prompt better

dot_oh-my-zsh/custom/themes/lavender-dimmed.zsh-theme

@@ -35,6 +35,9 @@ zmodload zsh/nearcolor 2>/dev/null
 #
 # Override these settings in your ~/.zshrc
 
+# Rounded left corner of the first prompt segment (constant accent color)
+: ${AGNOSTER_CORNER_FG:=#b39cd0}
+
 # Current working directory
 : ${AGNOSTER_DIR_FG:=#1e222a}
 : ${AGNOSTER_DIR_BG:=#b39cd0}
@@ -119,21 +122,35 @@ prompt_segment() {
   [[ -n $2 ]] && fg="%F{$2}" || fg="%f"
   if [[ $CURRENT_BG != 'NONE' && $1 != $CURRENT_BG ]]; then
     echo -n " %{$bg%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR%{$fg%} "
+  else
+    if [[ $CURRENT_BG == 'NONE' && -n $1 ]]; then
+      echo -n "%F{$AGNOSTER_CORNER_FG}╭%{$bg%}%{$fg%} "
     else
       echo -n "%{$bg%}%{$fg%} "
     fi
+  fi
   CURRENT_BG=$1
   [[ -n $3 ]] && echo -n $3
 }
 
 # End the prompt, closing any open segments
 prompt_end() {
+  local wrap_bg=$CURRENT_BG
   if [[ -n $CURRENT_BG ]]; then
     echo -n " %{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
   else
     echo -n "%{%k%}"
   fi
   echo -n "%{%f%}"
+  echo -n $'\n'
+  if [[ -n $wrap_bg ]]; then
+    echo -n "%{%F{$wrap_bg}%}╰─%{%f%} "
+  fi
+  if [[ $RETVAL -ne 0 ]]; then
+    echo -n "%{%F{$AGNOSTER_STATUS_RETVAL_FG}%}❯%{%f%} "
+  else
+    echo -n "%{%F{$AGNOSTER_GIT_CLEAN_BG}%}❯%{%f%} "
+  fi
   CURRENT_BG=''
 }
 
@@ -319,11 +336,6 @@ prompt_virtualenv() {
 prompt_status() {
   local -a symbols
 
-  if [[ $AGNOSTER_STATUS_RETVAL_NUMERIC == 'true' ]]; then
-    [[ $RETVAL -ne 0 ]] && symbols+="%{%F{$AGNOSTER_STATUS_RETVAL_FG}%}$RETVAL"
-  else
-    [[ $RETVAL -ne 0 ]] && symbols+="%{%F{$AGNOSTER_STATUS_RETVAL_FG}%}✘"
-  fi
   [[ $UID -eq 0 ]] && symbols+="%{%F{$AGNOSTER_STATUS_ROOT_FG}%}⚡"
   [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{$AGNOSTER_STATUS_JOB_FG}%}⚙"