Add wallpapers and sources

Makefile

@@ -0,0 +1,23 @@
+ORIGINAL=$(wildcard original/*)
+
+prefix ?= /usr
+datarootdir = $(prefix)/share
+datadir = $(datarootdir)
+
+.PHONY: all clean install uninstall
+
+all:
+
+clean:
+	rm -rf build scaled
+
+install: all
+	for file in $(ORIGINAL); do \
+		install -D -m 0644 "$$file" "$(DESTDIR)$(datadir)/backgrounds/cosmic/$$(basename "$$file")"; \
+	done
+
+uninstall:
+	for file in $(ORIGINAL); do \
+		rm -f "$(DESTDIR)$(datadir)/backgrounds/cosmic/$$(basename "$$file")"; \
+	done
+	rmdir --ignore-fail-on-non-empty "$(DESTDIR)$(datadir)/backgrounds/cosmic/"