Add 30x scripts

sh/301-adapta-theme

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+#!/bin/sh
+#
+# Adapta is a common GTK theme used by many users. There is
+# also A KDE theme for consistency across both toolkits.
+#
+# https://github.com/adapta-project/adapta-gtk-theme
+# https://github.com/PapirusDevelopmentTeam/adapta-kde
+
+set -xe
+
+pacman -S adapta-gtk-theme
+
+pacman -S adapta-kde

sh/302-arc-theme

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+#!/bin/sh
+#
+# Arc is also a often used theme. Once again, there is also
+# a KDE version for consistency across the two.
+#
+# https://github.com/horst3180/arc-theme
+# https://github.com/PapirusDevelopmentTeam/arc-kde
+
+set -xe
+
+pacman -S arc-gtk-theme
+
+pacman -S arc-kde

sh/303-materia-theme

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+#!/bin/sh
+#
+# Materia is another common theme.
+#
+# https://github.com/nana-4/materia-theme
+# https://github.com/PapirusDevelopmentTeam/materia-kde
+
+set -xe
+
+pacman -S materia-gtk-theme
+
+pacman -S materia-kde

sh/304-papirus-icon-theme

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+#!/bin/sh
+#
+# Papirus is the go-to icon theme used by many. It just works.
+#
+# https://wiki.archlinux.org/index.php/Icons
+# https://github.com/PapirusDevelopmentTeam/papirus-icon-theme
+
+set -xe
+
+pacman -S papirus-icon-theme