Made a distinct variable for the color scheme name in flake.nix, made a script 'chscheme' that allows one to easily change said variable

modules/home/scripts/nix/chscheme.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+/usr/bin/env ls "$(nix-build '<nixpkgs>' -A base16-schemes)"/share/themes | \
+    sed 's/\.yaml//g' | \
+    fzf --preview 'cat $(nix-build "<nixpkgs>" -A base16-schemes)/share/themes/{}.yaml | \
+    while IFS=": " read -r key value; do \
+        if [[ $key =~ base0[0-9A-F] ]]; then \
+            clean_value=$(echo $value | tr -d "\""); \
+            r=$((16#${clean_value:0:2})); \
+            g=$((16#${clean_value:2:2})); \
+            b=$((16#${clean_value:4:2})); \
+            printf "\033[48;2;%d;%d;%dm %-20s %s \033[0m\n" $r $g $b $key $clean_value; \
+        fi; \
+    done' | xargs -I {} sed -i '/base16scheme \=/s/\".*\"/\"{}\"/' "$HOME"/.sysflake/flake.nix && \
+		echo "Successfully changed system color scheme. Rebuild now?" && \
+		select choice in "Yes" "No"; do
+			case $choice in 
+				"Yes")
+					rebuild;exit 0;;
+				"No")
+					echo "Exiting...";exit 0;;
+			esac
+		done