web: settings ui & const for settings type options

web/src/routes/settings/general/appearance/+page.svelte

@@ -1 +1,33 @@
-<div>appearance settings</div>
+<script lang="ts">
+    import SettingsCategory from "$components/settings/SettingsCategory.svelte";
+    import Switcher from "$components/buttons/Switcher.svelte";
+    import SettingsButton from "$components/buttons/SettingsButton.svelte";
+    import SettingsCheckbox from "$components/buttons/SettingsCheckbox.svelte";
+
+    import { themeOptions } from "$lib/types/settings";
+</script>
+
+<SettingsCategory title="theme">
+    <Switcher big={true}>
+        {#each themeOptions as value}
+            <SettingsButton settingContext="appearance" settingId="theme" settingValue={value}>
+                {value}
+            </SettingsButton>
+        {/each}
+    </Switcher>
+</SettingsCategory>
+
+<SettingsCategory title="accessibility">
+    <SettingsCheckbox
+        settingContext="accessibility"
+        settingId="reduceTransparency"
+        title="reduce visual transparency"
+        description="disables blur effects and reduces transparency of surfaces."
+    />
+    <SettingsCheckbox
+        settingContext="accessibility"
+        settingId="reduceAnimations"
+        title="reduce animations"
+        description="replaces rapid animations with smooth transitions."
+    />
+</SettingsCategory>