OS: Added support for postmarketos

ascii/distro/postmarketos

+${c1}                    ss
+                 `hMMh`
+                .dMMMMd.
+               -NMMMMMMN-
+              /MMMMMMMMMN/
+              hMMMMMMMMMMMo
+            y+`mMMmdNMMMMMMy
+          `dMM-.-:- .mMMMMMMh`
+         .mMMMMMMd`  `dMMMMMMm.
+        :NMMMMMMy      yMMMMMMN:
+       /MMMMMMMo        oMMMmdmN/
+      oMMMMMMM/          /MN.-/:-.
+    `yMMMMMMN-            -:.NMMMMy`
+   `dMMMMMMM- -/////////////dMMMMMMd`
+  -mMMMMMMMMN+`sMMMMMMMMMMMMMMMMMMMMm-
+ :NMMMMMMMMMMM/ yMMMMMMMMMMMMMMMMMMMMN:
++MMMMMMMMMMMh.:mMMMMMMMMMMMMMMMMMMMMMMM+

neofetch

@@ -3820,6 +3820,11 @@ get_distro_colors() {
             ascii_file="porteus"
         ;;
 
+        "PostMarketOS"*)
+            set_colors 2 7
+            ascii_file="postmarketos"
+        ;;
+
         "Puppy"* | "Quirky Werewolf"* | "Precise Puppy"*)
             set_colors 4 7
             ascii_file="puppy"