diff --git a/themes/gradient.sh b/themes/gradient.sh
index 14dea7b..12d5361 100644
--- a/themes/gradient.sh
+++ b/themes/gradient.sh
@@ -6,8 +6,8 @@ local fg_gradient=(16 16 16 16 16 15 15)
 local j=0
 for i in ${WISH_PLUGINS[@]}; do
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=${gradient[$j]}
-	eval WISH_${i^^}_FG=${fg_gradient[$j]}
+	declare WISH_${i^^}_BG=${gradient[$j]}
+	declare WISH_${i^^}_FG=${fg_gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0
@@ -18,8 +18,8 @@ j=0
 for ((idx=$((${#WISH_RIGHT_PLUGINS[@]} - 1)); idx >= 0; idx--)); do
 	i=${WISH_RIGHT_PLUGINS[$idx]}
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=${gradient[$j]}
-	eval WISH_${i^^}_FG=${fg_gradient[$j]}
+	declare WISH_${i^^}_BG=${gradient[$j]}
+	declare WISH_${i^^}_FG=${fg_gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0
diff --git a/themes/icy_candy.sh b/themes/icy_candy.sh
index 49db655..44e5aaf 100644
--- a/themes/icy_candy.sh
+++ b/themes/icy_candy.sh
@@ -8,8 +8,8 @@ function wish_icy_candy_theme {
 	local j=0
 	for i in "${WISH_PLUGINS[@]}"; do
 		[[ $i =~ newline$ ]] && j=0 && continue
-		eval "WISH_${i^^}_FG=${fg_gradient[$j]}"
-		eval "WISH_${i^^}_BG=${l_gradient[$j]}"
+		declare "WISH_${i^^}_FG=${fg_gradient[$j]}"
+		declare "WISH_${i^^}_BG=${l_gradient[$j]}"
 		((j++))
 		if [[ $j -eq ${#l_gradient[@]} ]]; then
 			j=0
@@ -20,8 +20,8 @@ function wish_icy_candy_theme {
 	for ((idx=$((${#WISH_RIGHT_PLUGINS[@]} - 1)); idx >= 0; idx--)); do
 		i=${WISH_RIGHT_PLUGINS[$idx]}
 		[[ $i =~ newline$ ]] && j=0 && continue
-		eval "WISH_${i^^}_BG=${r_gradient[$j]}"
-		eval "WISH_${i^^}_FG=${fg_gradient[$j]}"
+		declare "WISH_${i^^}_BG=${r_gradient[$j]}"
+		declare "WISH_${i^^}_FG=${fg_gradient[$j]}"
 		((j++))
 		if [[ $j -eq ${#r_gradient[@]} ]]; then
 			j=0
diff --git a/themes/lowfi-neon.sh b/themes/lowfi-neon.sh
index a6aabd6..7b3ee9f 100644
--- a/themes/lowfi-neon.sh
+++ b/themes/lowfi-neon.sh
@@ -6,8 +6,8 @@ local gradient=(e7c547 c0e551 82e35a 62e177 6bdfb3 73d4dd 7aa6da)
 local j=0
 for i in ${WISH_PLUGINS[@]}; do
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=-1
-	eval WISH_${i^^}_FG=${gradient[$j]}
+	declare WISH_${i^^}_BG=-1
+	declare WISH_${i^^}_FG=${gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0
@@ -18,8 +18,8 @@ j=0
 for ((idx=$((${#WISH_RIGHT_PLUGINS[@]} - 1)); idx >= 0; idx--)); do
 	i=${WISH_RIGHT_PLUGINS[$idx]}
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=-1
-	eval WISH_${i^^}_FG=${gradient[$j]}
+	declare WISH_${i^^}_BG=-1
+	declare WISH_${i^^}_FG=${gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0
diff --git a/themes/luminus.sh b/themes/luminus.sh
index 2621e0d..561dc38 100644
--- a/themes/luminus.sh
+++ b/themes/luminus.sh
@@ -7,8 +7,8 @@ function wish_luminous_theme {
 	local j=0
 	for i in "${WISH_PLUGINS[@]}"; do
 		[[ $i =~ newline$ ]] && j=0 && continue
-		eval "WISH_${i^^}_FG=${fg_gradient[$j]}"
-		eval "WISH_${i^^}_BG=${gradient[$j]}"
+		declare "WISH_${i^^}_FG=${fg_gradient[$j]}"
+		declare "WISH_${i^^}_BG=${gradient[$j]}"
 		((j++))
 		if [[ $j -eq ${#gradient[@]} ]]; then
 			j=0
@@ -19,8 +19,8 @@ function wish_luminous_theme {
 	for ((idx=$((${#WISH_RIGHT_PLUGINS[@]} - 1)); idx >= 0; idx--)); do
 		i=${WISH_RIGHT_PLUGINS[$idx]}
 		[[ $i =~ newline$ ]] && j=0 && continue
-		eval "WISH_${i^^}_BG=${gradient[$j]}"
-		eval "WISH_${i^^}_FG=${fg_gradient[$j]}"
+		declare "WISH_${i^^}_BG=${gradient[$j]}"
+		declare "WISH_${i^^}_FG=${fg_gradient[$j]}"
 		((j++))
 		if [[ $j -eq ${#gradient[@]} ]]; then
 			j=0
diff --git a/themes/plain.sh b/themes/plain.sh
index ffef741..0b04cf4 100644
--- a/themes/plain.sh
+++ b/themes/plain.sh
@@ -2,6 +2,6 @@ WISH_DEFAULT_BG=-1
 WISH_DEFAULT_FG=-1
 WISH_POWERLINE=0
 for i in ${WISH_PLUGINS[@]} ${WISH_RIGHT_PLUGINS[@]}; do
-	eval WISH_${i^^}_BG=-1
-	eval WISH_${i^^}_FG=-1
+	declare WISH_${i^^}_BG=-1
+	declare WISH_${i^^}_FG=-1
 done
diff --git a/themes/rgb_gradient.sh b/themes/rgb_gradient.sh
index ffadde2..e244c7b 100644
--- a/themes/rgb_gradient.sh
+++ b/themes/rgb_gradient.sh
@@ -6,8 +6,8 @@ local fg_gradient=(000000 000000 000000 000000 000000 ffffff ffffff)
 local j=0
 for i in ${WISH_PLUGINS[@]}; do
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=${gradient[$j]}
-	eval WISH_${i^^}_FG=${fg_gradient[$j]}
+	declare WISH_${i^^}_BG=${gradient[$j]}
+	declare WISH_${i^^}_FG=${fg_gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0
@@ -18,8 +18,8 @@ j=0
 for ((idx=$((${#WISH_RIGHT_PLUGINS[@]} - 1)); idx >= 0; idx--)); do
 	i=${WISH_RIGHT_PLUGINS[$idx]}
 	[[ $i =~ newline$ ]] && j=0 && continue
-	eval WISH_${i^^}_BG=${gradient[$j]}
-	eval WISH_${i^^}_FG=${fg_gradient[$j]}
+	declare WISH_${i^^}_BG=${gradient[$j]}
+	declare WISH_${i^^}_FG=${fg_gradient[$j]}
 	((j++))
 	if [[ $j -eq ${#gradient[@]} ]]; then
 		j=0