Fixed fco_preview to correctly show logs. Use git --format to remove dependency on grep, sed and awk. Show branches first. Colour change 'tag' to magenta (from red). Use bash syntax and remove echo at the end

Examples.md

@@ -439,17 +439,17 @@ fco() {
 # fco_preview - checkout git branch/tag, with a preview showing the commits between the tag/branch and HEAD
 fco_preview() {
   local tags branches target
-  tags=$(
-git tag | awk '{print "\x1b[31;1mtag\x1b[m\t" $1}') || return
   branches=$(
-git branch --all | grep -v HEAD |
-sed "s/.* //" | sed "s#remotes/[^/]*/##" |
-sort -u | awk '{print "\x1b[34;1mbranch\x1b[m\t" $1}') || return
+    git --no-pager branch --all \
+      --format="%(if)%(HEAD)%(then)%(else)%(if:equals=HEAD)%(refname:strip=3)%(then)%(else)%1B[0;34;1mbranch%09%1B[m%(refname:short)%(end)%(end)" \
+    | sed '/^$/d') || return
+  tags=$(
+    git --no-pager tag | awk '{print "\x1b[35;1mtag\x1b[m\t" $1}') || return
   target=$(
-(echo "$tags"; echo "$branches") |
-    fzf --no-hscroll --no-multi --delimiter="\t" -n 2 \
-        --ansi --preview="git log -200 --pretty=format:%s $(echo {+2..} |  sed 's/$/../' )" ) || return
-  git checkout $(echo "$target" | awk '{print $2}')
+    (echo "$branches"; echo "$tags") |
+    fzf --no-hscroll --no-multi -n 2 \
+        --ansi --preview="git --no-pager log -150 --pretty=format:%s '..{2}'") || return
+  git checkout $(awk '{print $2}' <<<"$target" )
 }
 
 ```