diff --git a/src/dlangide/ui/settings.d b/src/dlangide/ui/settings.d
index d554473..a75b9e8 100644
--- a/src/dlangide/ui/settings.d
+++ b/src/dlangide/ui/settings.d
@@ -2,6 +2,10 @@ module dlangide.ui.settings;
 
 import dlangui.core.settings;
 
+
+const AVAILABLE_THEMES = ["theme_default", "theme_dark"];
+const AVAILABLE_LANGUAGES = ["en", "ru"];
+
 class IDESettings : SettingsFile {
 
     this(string filename) {
@@ -12,6 +16,9 @@ class IDESettings : SettingsFile {
         Setting ed = editorSettings();
         ed.setBooleanDef("useSpacesForTabs", true);
         ed.setIntegerDef("tabSize", 4);
+        Setting ui = uiSettings();
+        ui.setStringDef("theme", "theme_default");
+        ui.setStringDef("language", "en");
     }
 
     /// override to do something after loading - e.g. set defaults
@@ -23,6 +30,11 @@ class IDESettings : SettingsFile {
         return res;
     }
 
+    @property Setting uiSettings() {
+        Setting res = _setting.objectByPath("interface", true);
+        return res;
+    }
+
     static int limitInt(long value, int minvalue, int maxvalue) {
         if (value < minvalue)
             return minvalue;
@@ -31,6 +43,34 @@ class IDESettings : SettingsFile {
         return cast(int)value;
     }
 
+    static string limitString(string value, const string[] values) {
+        assert(values.length > 0);
+        foreach(v; values)
+            if (v.equal(value))
+                return value;
+        return values[0];
+    }
+
+    /// theme
+    @property string uiTheme() {
+        return limitString(uiSettings.getString("theme", "theme_default"), AVAILABLE_THEMES);
+    }
+    /// theme
+    @property IDESettings uiTheme(string v) {
+        uiSettings.setString("theme", limitString(v, AVAILABLE_THEMES));
+        return this;
+    }
+
+    /// language
+    @property string uiLanguage() {
+        return limitString(uiSettings.getString("language", "en"), AVAILABLE_LANGUAGES);
+    }
+    /// language
+    @property IDESettings uiLanguage(string v) {
+        uiSettings.setString("language", limitString(v, AVAILABLE_LANGUAGES));
+        return this;
+    }
+
     /// text editor setting, true if need to insert spaces instead of tabs
     @property bool useSpacesForTabs() {
         return editorSettings.getBoolean("useSpacesForTabs", true);