Mark imagemagick as optional dependency (allows kitty backend)

Makefile

@@ -20,6 +20,7 @@ install:
 	mkdir -p $(PREFIX)/bin
 	install -m 0755 nekofetch $(PREFIX)/bin/nekofetch
 	@echo "You may need to install jq, jp2a, and neofetch"
+	@echo "imagemagick is also required to use the kitty image backend"
 
 uninstall:
 	rm -f $(PREFIX)/bin/nekofetch

control.template

@@ -2,5 +2,6 @@ Package: PACKAGE
 Architecture: ARCH
 Version: VERSION
 Depends: curl, jq, jp2a, neofetch
+Recommends: imagemagick
 Description: neofetch but with nekos
 Maintainer: bbaovanc <bbaovanc@bbaovanc.com>

nekofetch

@@ -23,7 +23,7 @@ echo "Using height $height"
 url=$(curl -fsSL "$imgurl" | jq -r ".url")
 
 curl -fsSLo "$tmpfile.jpg" "$url"
-if [ "$TERM" = "xterm-kitty" ]; then
+if [ "$TERM" = "xterm-kitty" ] && command -v convert > /dev/null 2>&1; then
     neofetch --kitty "$tmpfile.jpg"
 else
     jp2a --height="$height" "$tmpfile.jpg" > "$tmpfile"