diff --git a/res/theme_default.xml b/res/theme_default.xml
index eed0aa5f..add1b54e 100644
--- a/res/theme_default.xml
+++ b/res/theme_default.xml
@@ -302,15 +302,14 @@
         />
 
     <style id="TREE_ITEM"
-        padding="2,2,2,2"
-        margins="0,0,0,0"
+        padding="1,1,1,1"
         minWidth="100"
         minHeight="16"
         layoutWidth="FILL_PARENT"
         layoutHeight="WRAP_CONTENT"
         fontFace="Arial"
         fontFamily="SansSerif"
-        fontSize="16">
+        fontSize="12">
     </style>
     <style id="TREE_ITEM_EXPAND_ICON"
         margins="2,0,2,0"
@@ -333,6 +332,7 @@
         layoutHeight="WRAP_CONTENT"
         align="Left|VCenter"
         textFlags="Parent"
+	fontSize="12"
     />
     <style id="RESIZER_VERTICAL"
         layoutWidth="FILL_PARENT"
diff --git a/src/dlangui/widgets/docks.d b/src/dlangui/widgets/docks.d
index bbea8b20..c7ced5c5 100644
--- a/src/dlangui/widgets/docks.d
+++ b/src/dlangui/widgets/docks.d
@@ -98,10 +98,10 @@ class DockHost : WidgetGroupDefaultDrawing {
         DockWindow[] left = getDockedWindowList(DockAlignment.Left);
         DockWindow[] right = getDockedWindowList(DockAlignment.Right);
         DockWindow[] bottom = getDockedWindowList(DockAlignment.Bottom);
-        _topSpace = top.length ? rc.height / 5 : 0;
-        _bottomSpace = bottom.length ? rc.height / 5 : 0;
-        _rightSpace = right.length ? rc.width / 5 : 0;
-        _leftSpace = left.length ? rc.width / 5 : 0;
+        _topSpace = top.length ? rc.height / 4 : 0;
+        _bottomSpace = bottom.length ? rc.height / 4 : 0;
+        _rightSpace = right.length ? rc.width / 4 : 0;
+        _leftSpace = left.length ? rc.width / 4 : 0;
         if (_bodyWidget)
             _bodyWidget.layout(Rect(rc.left + _leftSpace, rc.top + _topSpace, rc.right - _rightSpace, rc.bottom - _bottomSpace));
         layoutDocked(top, Rect(rc.left + _leftSpace, rc.top, rc.right - _rightSpace, rc.top + _topSpace), Orientation.Horizontal);
@@ -143,6 +143,7 @@ class DockHost : WidgetGroupDefaultDrawing {
     }
 }
 
+/// dock alignment types
 enum DockAlignment {
     Left,
     Right,
@@ -177,11 +178,13 @@ class DockWindow : VerticalLayout {
     protected HorizontalLayout _captionLayout;
     protected TextWidget _caption;
     protected ImageButton _closeButton;
+
     this(string ID) {
         super(ID);
-        _dockAlignment = DockAlignment.Right;
+        _dockAlignment = DockAlignment.Right; // default alignment is right
         init();
     }
+
     protected bool onCloseButtonClick(Widget source) {
         return true;
     }
diff --git a/src/dlangui/widgets/editors.d b/src/dlangui/widgets/editors.d
index 9aecc30e..47561dbe 100644
--- a/src/dlangui/widgets/editors.d
+++ b/src/dlangui/widgets/editors.d
@@ -8,6 +8,7 @@ EditLine - single line editor.
 
 EditBox - multiline editor
 
+LogWidget - readonly text box for showing logs
 
 Synopsis:
 
@@ -530,6 +531,14 @@ class EditableContent {
         return cast(dstring)buf;
     }
 
+    /// append one or more lines at end
+    void appendLines(dstring[] lines...) {
+        TextRange rangeBefore;
+        rangeBefore.start = rangeBefore.end = lineEnd(_lines.length ? _lines.length - 1 : 0);
+        EditOperation op = new EditOperation(EditAction.Replace, rangeBefore, lines);
+        performOperation(op, this);
+    }
+
     /// call listener to say that whole content is replaced e.g. by loading from file
     void notifyContentReplaced() {
         TextRange rangeBefore;
@@ -2863,3 +2872,44 @@ class EditBox : EditWidgetBase {
     }
 
 }
+
+/// Read only edit box for displaying logs with lines append operation
+class LogWidget : EditBox {
+
+    protected int  _maxLines;
+    /// max lines to show (when appended more than max lines, older lines will be truncated), 0 means no limit
+    @property int maxLines() { return _maxLines; }
+    /// set max lines to show (when appended more than max lines, older lines will be truncated), 0 means no limit
+    @property void maxLines(int n) { _maxLines = n; }
+
+    protected bool _scrollLock;
+    /// when true, automatically scrolls down when new lines are appended (usually being reset by scrollbar interaction)
+    @property bool scrollLock() { return _scrollLock; }
+    /// when true, automatically scrolls down when new lines are appended (usually being reset by scrollbar interaction)
+    @property void scrollLock(bool flg) { _scrollLock = flg; }
+
+    this(string ID) {
+        super(ID);
+        _scrollLock = true;
+        enabled = false;
+        fontSize = 12;
+		fontFace = "Consolas,Lucida Console,Courier New";
+		fontFamily = FontFamily.MonoSpace;
+    }
+    /// append lines to the end of text
+    void appendLines(dstring[] lines...) {
+        lines ~= ""d; // append new line after last line
+        content.appendLines(lines);
+        if (_maxLines > 0 && lineCount > _maxLines) {
+            TextRange range;
+            range.end.line = lineCount - _maxLines;
+            EditOperation op = new EditOperation(EditAction.Replace, range, [""d]);
+            _content.performOperation(op, this);
+        }
+        updateScrollBars();
+        if (_scrollLock) {
+            _caretPos = TextPosition(lineCount > 0 ? lineCount - 1 : 0, 0);
+            ensureCaretVisible();
+        }
+    }
+}
diff --git a/src/dlangui/widgets/srcedit.d b/src/dlangui/widgets/srcedit.d
index cebe5b6e..44501cec 100644
--- a/src/dlangui/widgets/srcedit.d
+++ b/src/dlangui/widgets/srcedit.d
@@ -27,8 +27,7 @@ class SourceEdit : EditBox {
 		super(ID);
 		fontFace = "Consolas,Lucida Console,Courier New";
 		fontFamily = FontFamily.MonoSpace;
-		fontSize = 14;
-        fontWeight = 300;
+		fontSize = 12;
 		layoutWidth(FILL_PARENT).layoutHeight(FILL_PARENT);
         minFontSize(10).maxFontSize(75); // allow font zoom with Ctrl + MouseWheel
         _showLineNumbers = true;