add Gopher icon to go_version segment

functions/icons.zsh

@@ -78,6 +78,7 @@ case $POWERLEVEL9K_MODE in
       RUST_ICON                      ''
       PYTHON_ICON                    $'\U1F40D'             # 🐍
       SWIFT_ICON                     ''
+      GO_ICON                        ''
       PUBLIC_IP_ICON                 ''
       LOCK_ICON                      $'\UE138'              # 
       EXECUTION_TIME_ICON            $'\UE89C'              # 
@@ -144,6 +145,7 @@ case $POWERLEVEL9K_MODE in
       RUST_ICON                      $'\uE6A8'              #  
       PYTHON_ICON                    $'\U1F40D'             # 🐍
       SWIFT_ICON                     ''
+      GO_ICON                        ''
       PUBLIC_IP_ICON                 ''
       LOCK_ICON                      $'\UE138'              # 
       EXECUTION_TIME_ICON            $'\uF253'
@@ -210,6 +212,7 @@ case $POWERLEVEL9K_MODE in
       RUST_ICON                      $'\uE7A8 '             # 
       PYTHON_ICON                    $'\UE73C '             # 
       SWIFT_ICON                     $'\uE755'              # 
+      GO_ICON                        $'\uE626'              # 
       PUBLIC_IP_ICON                 $'\UF0AC'              # 
       LOCK_ICON                      $'\UF023'              #  
       EXECUTION_TIME_ICON            $'\uF252'              #  
@@ -276,6 +279,7 @@ case $POWERLEVEL9K_MODE in
       RUST_ICON                      ''
       PYTHON_ICON                    ''
       SWIFT_ICON                     'Swift'
+      GO_ICON                        'Go'
       PUBLIC_IP_ICON                 ''
       LOCK_ICON                      $'\UE0A2'
       EXECUTION_TIME_ICON            'Dur'

powerlevel9k.zsh-theme

@@ -759,7 +759,7 @@ prompt_go_version() {
   go_path=$(go env GOPATH 2>/dev/null)
 
   if [[ -n "$go_version" && "${PWD##$go_path}" != "$PWD" ]]; then
-    "$1_prompt_segment" "$0" "$2" "green" "255" "$go_version"
+    "$1_prompt_segment" "$0" "$2" "green" "255" "$go_version" "GO_ICON"
   fi
 }