style theme selector

styles/preferences/theme.css

@@ -0,0 +1,17 @@
+#change-theme-container {
+    height: 10vh;
+    width: 98vw;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    background-color: var(--light-background-color);
+    margin-top: 3%;
+    border: var(--highlight-color) 5px solid;
+    border-radius: 10px;
+    gap: 1%;
+}
+
+#change-theme-container * {
+    font-size: clamp(1rem, 1.5rem, 2rem);
+    color: var(--text-color);
+}