Use the term 'color scheme' instead of 'color theme'

src/features/colorScheme/components/ColorSchemeButton.vue

@@ -0,0 +1,69 @@
+<!--
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<script setup>
+import { inject } from 'vue';
+
+const colorScheme = inject('colorScheme');
+
+const colorSchemeNextMapper = {
+    'light': 'dark',
+    'dark': 'auto',
+    'auto': 'light'
+};
+
+const colorSchemeTextMapper = {
+    'light': 'Switch to light mode',
+    'dark': 'Switch to dark mode',
+    'auto': 'Switch to the system scheme'
+}
+
+const colorSchemeIconMapper = {
+    'dark': '⏾',
+    'light': '☀',
+    'auto': '◐'
+}
+</script>
+
+<template>
+    <button class="color-scheme-button"
+        @click="colorScheme = colorSchemeNextMapper[colorScheme]"
+        :aria-label="colorSchemeTextMapper[colorSchemeNextMapper[colorScheme]]"
+        :title="colorSchemeTextMapper[colorSchemeNextMapper[colorScheme]]"
+    >
+        {{ colorSchemeIconMapper[colorSchemeNextMapper[colorScheme]] }}
+    </button>
+</template>
+
+<style scoped>
+.color-scheme-button {
+    background: none;
+    border: 1.5px solid var(--light-d-3);
+    border-radius: 50%;
+    width: 36px;
+    height: 36px;
+    cursor: pointer;
+    font-size: 1rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: var(--dark);
+}
+
+.color-scheme-button:hover {
+    background: var(--light-d-2);
+}
+</style>

src/features/colorScheme/composables/useColorScheme.js

@@ -0,0 +1,39 @@
+/*
+Copyright 2026 Seekra
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+export const useColorScheme = function () {
+    const getColorScheme = function () {
+        let colorScheme = localStorage.getItem('colorScheme') || 'auto';
+        if (!(colorScheme === 'dark' || colorScheme === 'light' || colorScheme === 'auto')) {
+            colorScheme = 'auto';
+        };
+        return colorScheme;
+    };
+
+    const updateColorScheme = function (newScheme) {
+        let actualNewScheme = newScheme;
+        if (!(actualNewScheme === 'dark' || actualNewScheme === 'light' || actualNewScheme === 'auto')) {
+            actualNewScheme = 'auto';
+        };
+
+        localStorage.setItem('colorScheme', actualNewScheme);
+    };
+
+    return {
+        getColorScheme,
+        updateColorScheme
+    };
+};