added LINUX_*_ICON for several OS

functions/icons.zsh

@@ -277,6 +277,21 @@ case $POWERLEVEL9K_MODE in
       WINDOWS_ICON                   $'\uF17A'              # 
       FREEBSD_ICON                   $'\UF30E '             # 
       ANDROID_ICON                   $'\uF17B'              # 
+      LINUX_ARCH_ICON                $'\uF300'              # 
+      LINUX_DEBIAN_ICON              $'\uF302'              # 
+      LINUX_UBUNTU_ICON              $'\uF30C'              # 
+      LINUX_CENTOS_ICON              $'\uF301'              # 
+      LINUX_COREOS_ICON              $'\uF30F'              # 
+      LINUX_ELEMENTARY_ICON          $'\uF311'              # 
+      LINUX_FEDORA_ICON              $'\uF303'              # 
+      LINUX_GENTOO_ICON              $'\uF310'              # 
+      LINUX_MINT_ICON                $'\uF304'              # 
+      LINUX_MAGEIA_ICON              $'\uF306'              # 
+      LINUX_MANDRIVA_ICON            $'\uF307'              # 
+      LINUX_OPENSUSE_ICON            $'\uF308'              # 
+      LINUX_REDHAT_ICON              $'\uF309'              # 
+      LINUX_SABAYON_ICON             $'\uF313'              # 
+      LINUX_SLACKWARE_ICON           $'\uF30A'              # 
       LINUX_ICON                     $'\uF17C'              # 
       SUNOS_ICON                     $'\uF185 '             # 
       HOME_ICON                      $'\uF015'              # 

functions/utilities.zsh

@@ -105,6 +105,22 @@ case $(uname) in
       OS='Linux'
       OS_ICON=$(print_icon 'LINUX_ICON')
 
+      # Check if the OS is debian
+      if [ `lsb_release -si`="Debian" ]; then
+        OS='Debian'
+        OS_ICON=$(print_icon 'LINUX_DEBIAN_ICON')
+      fi
+      # Check if the OS is ubuntu
+      if [ `lsb_release -si`="Ubuntu" ]; then
+        OS='Ubuntu'
+        OS_ICON=$(print_icon 'LINUX_Ubuntu_ICON')
+      fi
+      # Check if the OS is mint
+      if [ `lsb_release -si`="Mint" ]; then
+        OS='Mint'
+        OS_ICON=$(print_icon 'LINUX_MINT_ICON')
+      fi
+
       # Check if we're running on Android
       case $(uname -o 2>/dev/null) in
         Android)