diff --git a/sdk/include/reactos/cicero/cicarray.h b/sdk/include/reactos/cicero/cicarray.h
index 29c2e6e17ab..a9d4f4963ad 100644
--- a/sdk/include/reactos/cicero/cicarray.h
+++ b/sdk/include/reactos/cicero/cicarray.h
@@ -50,6 +50,16 @@ public:
 
     using CicArrayBase::Insert;
     using CicArrayBase::Remove;
+
+    ssize_t Find(const T_ITEM& item) const
+    {
+        for (size_t iItem = 0; iItem < m_cItems; ++iItem)
+        {
+            if ((*this)[iItem] == item)
+                return iItem;
+        }
+        return -1;
+    }
 };
 
 /******************************************************************************/
diff --git a/sdk/include/reactos/cicero/cicuif.h b/sdk/include/reactos/cicero/cicuif.h
index 55854b57cba..bdbc451ddab 100644
--- a/sdk/include/reactos/cicero/cicuif.h
+++ b/sdk/include/reactos/cicero/cicuif.h
@@ -7,13 +7,21 @@
 
 #pragma once
 
-#include "cicbase.h"
+#include "cicarray.h"
+
+struct CUIFTheme;
+    class CUIFObject;
+        class CUIFWindow;
+class CUIFObjectArray;
+class CUIFScheme;
 
 /////////////////////////////////////////////////////////////////////////////
 
 #include <uxtheme.h>
 
 // uxtheme.dll
+using FN_OpenThemeData = decltype(&OpenThemeData);
+using FN_CloseThemeData = decltype(&CloseThemeData);
 using FN_DrawThemeBackground = decltype(&DrawThemeBackground);
 using FN_DrawThemeParentBackground = decltype(&DrawThemeParentBackground);
 using FN_DrawThemeText = decltype(&DrawThemeText);
@@ -33,12 +41,13 @@ using FN_GetThemeSysSize = decltype(&GetThemeSysSize);
 
 struct CUIFTheme
 {
-protected:
     LPCWSTR m_pszClassList;
     INT m_iPartId;
-    DWORD m_dwUnknown2;
+    DWORD m_dwUnknown2; //FIXME: name and type
     HTHEME m_hTheme;
     static HINSTANCE s_hUXTHEME;
+    static FN_OpenThemeData s_fnOpenThemeData;
+    static FN_CloseThemeData s_fnCloseThemeData;
     static FN_DrawThemeBackground s_fnDrawThemeBackground;
     static FN_DrawThemeParentBackground s_fnDrawThemeParentBackground;
     static FN_DrawThemeText s_fnDrawThemeText;
@@ -54,7 +63,10 @@ protected:
     static FN_GetThemeSysColor s_fnGetThemeSysColor;
     static FN_GetThemeSysSize s_fnGetThemeSysSize;
 
-public:
+    HRESULT InternalOpenThemeData(HWND hWnd);
+    HRESULT EnsureThemeData(HWND hWnd);
+    HRESULT CloseThemeData();
+
     STDMETHOD(DrawThemeBackground)(HDC hDC, int iStateId, LPCRECT pRect, LPCRECT pClipRect);
     STDMETHOD(DrawThemeParentBackground)(HWND hwnd, HDC hDC, LPRECT prc);
     STDMETHOD(DrawThemeText)(HDC hDC, int iStateId, LPCWSTR pszText, int cchText, DWORD dwTextFlags, DWORD dwTextFlags2, LPCRECT pRect);
@@ -74,8 +86,122 @@ public:
 
 /////////////////////////////////////////////////////////////////////////////
 
+class CUIFObjectArray : public CicArray<CUIFObject*>
+{
+public:
+    CUIFObjectArray() { }
+
+    BOOL Add(CUIFObject *pObject)
+    {
+        if (!pObject || Find(pObject) >= 0)
+            return FALSE;
+
+        CUIFObject **ppNew = Append(1);
+        if (!ppNew)
+            return FALSE;
+
+        *ppNew = pObject;
+        return TRUE;
+    }
+
+    BOOL Remove(CUIFObject *pObject)
+    {
+        if (!pObject)
+            return FALSE;
+
+        ssize_t iItem = Find(pObject);
+        if (iItem < 0)
+            return FALSE;
+
+        if (size_t(iItem) + 1 < size())
+            MoveMemory(&data()[iItem], &data()[iItem + 1],
+                       (size() - (iItem + 1)) * sizeof(CUIFObject*));
+
+        --m_cItems;
+        return TRUE;
+    }
+
+    CUIFObject *GetLast() const
+    {
+        if (empty())
+            return NULL;
+        return (*this)[size() - 1];
+    }
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+class CUIFObject : public CUIFTheme
+{
+protected:
+    CUIFObject *m_pParent;
+    CUIFWindow *m_pWindow;
+    CUIFScheme *m_pScheme;
+    CUIFObjectArray m_ObjectArray;
+    DWORD m_dwUnknown3; //FIXME: name and type
+    DWORD m_style;
+    RECT m_rc;
+    BOOL m_bEnable;
+    BOOL m_bVisible;
+    HFONT m_hFont;
+    BOOL m_bHasCustomFont;
+    LPWSTR m_pszToolTip;
+    DWORD m_dwUnknown4[2]; //FIXME: name and type
+
+public:
+    CUIFObject(CUIFObject *pParent, DWORD dwUnknown3, LPRECT prc, DWORD style);
+    virtual ~CUIFObject();
+
+    STDMETHOD_(void, Initialize)();
+    STDMETHOD_(void, OnPaint)(HWND hWnd);
+    STDMETHOD_(void, OnHideToolTip)();
+    STDMETHOD_(void, OnLButtonDown)(POINT pt);
+    STDMETHOD_(void, OnLButtonDblClk)(POINT pt);
+    STDMETHOD_(void, OnLButtonUp)(POINT pt);
+    STDMETHOD_(void, OnMButtonDown)(POINT pt);
+    STDMETHOD_(void, OnMButtonDblClk)(POINT pt);
+    STDMETHOD_(void, OnMButtonUp)(POINT pt);
+    STDMETHOD_(void, OnRButtonDown)(POINT pt);
+    STDMETHOD_(void, OnRButtonDblClk)(POINT pt);
+    STDMETHOD_(void, OnRButtonUp)(POINT pt);
+    STDMETHOD_(void, OnUnknown)(DWORD x1, DWORD x2, DWORD x3); //FIXME: name and type
+    STDMETHOD_(void, GetRect)(LPRECT prc);
+    STDMETHOD_(void, SetRect)(LPCRECT prc);
+    STDMETHOD_(BOOL, PtInObject)(POINT pt);
+    STDMETHOD_(void, PaintObject)(HWND hWnd, LPCRECT prc);
+    STDMETHOD_(void, CallOnPaint)();
+    STDMETHOD_(void, Enable)(BOOL bEnable);
+    STDMETHOD_(void, Show)(BOOL bVisible);
+    STDMETHOD_(void, SetFontToThis)(HFONT hFont);
+    STDMETHOD_(void, SetFont)(HFONT hFont);
+    STDMETHOD_(void, SetStyle)(DWORD style);
+    STDMETHOD_(void, AddUIObj)(CUIFObject *pObject);
+    STDMETHOD_(void, RemoveUIObj)(CUIFObject *pObject);
+    STDMETHOD_(LRESULT, OnObjectNotify)(CUIFObject *pObject, WPARAM wParam, LPARAM lParam);
+    STDMETHOD_(void, SetToolTip)(LPCWSTR pszToolTip);
+    STDMETHOD_(LPCWSTR, GetToolTip)();
+    STDMETHOD_(LRESULT, OnShowToolTip)();
+    STDMETHOD_(void, OnHideToolTip2)();
+    STDMETHOD_(void, DetachWndObj)();
+    STDMETHOD_(void, ClearWndObj)();
+    STDMETHOD_(LRESULT, OnPaintTheme)(HWND hWnd);
+    STDMETHOD_(void, OnSetFocus)(HWND hWnd);
+    STDMETHOD_(void, ClearTheme)();
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+class CUIFWindow : public CUIFObject
+{
+    //FIXME
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
 // static members
 DECLSPEC_SELECTANY HINSTANCE CUIFTheme::s_hUXTHEME = NULL;
+DECLSPEC_SELECTANY FN_OpenThemeData CUIFTheme::s_fnOpenThemeData = NULL;
+DECLSPEC_SELECTANY FN_CloseThemeData CUIFTheme::s_fnCloseThemeData = NULL;
 DECLSPEC_SELECTANY FN_DrawThemeBackground CUIFTheme::s_fnDrawThemeBackground = NULL;
 DECLSPEC_SELECTANY FN_DrawThemeParentBackground CUIFTheme::s_fnDrawThemeParentBackground = NULL;
 DECLSPEC_SELECTANY FN_DrawThemeText CUIFTheme::s_fnDrawThemeText = NULL;
@@ -93,6 +219,37 @@ DECLSPEC_SELECTANY FN_GetThemeSysSize CUIFTheme::s_fnGetThemeSysSize = NULL;
 
 /////////////////////////////////////////////////////////////////////////////
 
+inline HRESULT CUIFTheme::InternalOpenThemeData(HWND hWnd)
+{
+    if (!hWnd || !m_pszClassList)
+        return E_FAIL;
+
+    if (!cicGetFN(s_hUXTHEME, s_fnOpenThemeData, TEXT("uxtheme.dll"), "OpenThemeData"))
+        return E_FAIL;
+    m_hTheme = s_fnOpenThemeData(hWnd, m_pszClassList);
+    return (m_hTheme ? S_OK : E_FAIL);
+}
+
+inline HRESULT CUIFTheme::EnsureThemeData(HWND hWnd)
+{
+    if (m_hTheme)
+        return S_OK;
+    return InternalOpenThemeData(hWnd);
+}
+
+inline HRESULT CUIFTheme::CloseThemeData()
+{
+    if (!m_hTheme)
+        return S_OK;
+
+    if (!cicGetFN(s_hUXTHEME, s_fnCloseThemeData, TEXT("uxtheme.dll"), "CloseThemeData"))
+        return E_FAIL;
+
+    HRESULT hr = s_fnCloseThemeData(m_hTheme);
+    m_hTheme = NULL;
+    return hr;
+}
+
 inline STDMETHODIMP
 CUIFTheme::DrawThemeBackground(HDC hDC, int iStateId, LPCRECT pRect, LPCRECT pClipRect)
 {
@@ -209,6 +366,302 @@ inline STDMETHODIMP_(void)
 CUIFTheme::SetActiveTheme(LPCWSTR pszClassList, INT iPartId, DWORD dwUnknown2)
 {
     m_iPartId = iPartId;
-    m_dwUnknown2 = dwUnknown2;
+    m_dwUnknown2 = dwUnknown2; //FIXME: name and type
     m_pszClassList = pszClassList;
 }
+
+/////////////////////////////////////////////////////////////////////////////
+
+/// @unimplemented
+inline
+CUIFObject::CUIFObject(CUIFObject *pParent, DWORD dwUnknown3, LPRECT prc, DWORD style)
+{
+    m_pszClassList = NULL;
+    m_hTheme = NULL;
+    m_pParent = pParent;
+    m_dwUnknown3 = dwUnknown3; //FIXME: name and type
+    m_style = style;
+
+    if (prc)
+        m_rc = *prc;
+    else
+        ::SetRect(&m_rc, 0, 0, 0, 0);
+
+    if (m_pParent)
+    {
+        m_pWindow = m_pParent->m_pWindow;
+        m_pScheme = m_pParent->m_pScheme;
+    }
+    else
+    {
+        m_pWindow = NULL;
+        m_pScheme = NULL;
+    }
+
+    m_bEnable = m_bVisible = TRUE;
+
+    m_hFont = (HFONT)::GetStockObject(DEFAULT_GUI_FONT);
+    m_bHasCustomFont = FALSE;
+
+    m_pszToolTip = NULL;
+
+    m_dwUnknown4[0] = -1; //FIXME
+    m_dwUnknown4[1] = -1; //FIXME
+}
+
+/// @unimplemented
+inline
+CUIFObject::~CUIFObject()
+{
+    if (m_pWindow)
+    {
+        //FIXME
+    }
+
+    if (m_pszToolTip)
+    {
+        delete[] m_pszToolTip;
+        m_pszToolTip = NULL;
+    }
+
+    for (;;)
+    {
+        CUIFObject *pLast = m_ObjectArray.GetLast();
+        if (!pLast)
+            break;
+
+        m_ObjectArray.Remove(pLast);
+        delete pLast;
+    }
+
+    if (m_pWindow)
+        m_pWindow->RemoveUIObj(this);
+
+    CloseThemeData();
+}
+
+inline STDMETHODIMP_(void) CUIFObject::Initialize()
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnPaint(HWND hWnd)
+{
+    if (!(m_pWindow->m_style & 0x80000000) || !OnPaintTheme(hWnd))
+        OnSetFocus(hWnd);
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnHideToolTip()
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnLButtonDown(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnLButtonDblClk(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnLButtonUp(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnMButtonDown(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnMButtonDblClk(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnMButtonUp(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnRButtonDown(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnRButtonDblClk(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnRButtonUp(POINT pt)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnUnknown(DWORD x1, DWORD x2, DWORD x3)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::GetRect(LPRECT prc)
+{
+    *prc = this->m_rc;
+}
+
+/// @unimplemented
+inline STDMETHODIMP_(void) CUIFObject::SetRect(LPCRECT prc)
+{
+    m_rc = *prc;
+    // FIXME
+    CallOnPaint();
+}
+
+inline STDMETHODIMP_(BOOL) CUIFObject::PtInObject(POINT pt)
+{
+    return m_bVisible && ::PtInRect(&m_rc, pt);
+}
+
+inline STDMETHODIMP_(void) CUIFObject::PaintObject(HWND hWnd, LPCRECT prc)
+{
+    if (!m_bVisible)
+        return;
+
+    if (!prc)
+        prc = &m_rc;
+
+    OnPaint(hWnd);
+
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+    {
+        CUIFObject *pObject = m_ObjectArray[iItem];
+        RECT rc;
+        if (::IntersectRect(&rc, prc, &pObject->m_rc))
+            pObject->PaintObject(hWnd, &rc);
+    }
+}
+
+/// @unimplemented
+inline STDMETHODIMP_(void) CUIFObject::CallOnPaint()
+{
+    //FIXME
+}
+
+inline STDMETHODIMP_(void) CUIFObject::Enable(BOOL bEnable)
+{
+    if (m_bEnable == bEnable)
+        return;
+
+    m_bEnable = bEnable;
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+        m_ObjectArray[iItem]->Enable(bEnable);
+
+    CallOnPaint();
+}
+
+inline STDMETHODIMP_(void) CUIFObject::Show(BOOL bVisible)
+{
+    if (m_bVisible == bVisible)
+        return;
+
+    m_bVisible = bVisible;
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+        m_ObjectArray[iItem]->Show(bVisible);
+
+    if (m_bVisible || m_pParent)
+        m_pParent->CallOnPaint();
+}
+
+inline STDMETHODIMP_(void) CUIFObject::SetFontToThis(HFONT hFont)
+{
+    m_bHasCustomFont = !!hFont;
+    if (!hFont)
+        hFont = (HFONT)::GetStockObject(DEFAULT_GUI_FONT);
+    m_hFont = hFont;
+}
+
+inline STDMETHODIMP_(void) CUIFObject::SetFont(HFONT hFont)
+{
+    SetFontToThis(hFont);
+
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+        m_ObjectArray[iItem]->SetFont(hFont);
+
+    CallOnPaint();
+}
+
+inline STDMETHODIMP_(void) CUIFObject::SetStyle(DWORD style)
+{
+    m_style = style;
+}
+
+inline STDMETHODIMP_(void) CUIFObject::AddUIObj(CUIFObject *pObject)
+{
+    m_ObjectArray.Add(pObject);
+    CallOnPaint();
+}
+
+inline STDMETHODIMP_(void) CUIFObject::RemoveUIObj(CUIFObject *pObject)
+{
+    if (m_ObjectArray.Remove(pObject))
+        CallOnPaint();
+}
+
+inline STDMETHODIMP_(LRESULT) CUIFObject::OnObjectNotify(CUIFObject *pObject, WPARAM wParam, LPARAM lParam)
+{
+    if (m_pParent)
+        return m_pParent->OnObjectNotify(pObject, wParam, lParam);
+    return 0;
+}
+
+inline STDMETHODIMP_(void) CUIFObject::SetToolTip(LPCWSTR pszToolTip)
+{
+    if (m_pszToolTip)
+    {
+        delete[] m_pszToolTip;
+        m_pszToolTip = NULL;
+    }
+
+    if (pszToolTip)
+    {
+        size_t cch = wcslen(pszToolTip);
+        m_pszToolTip = new(cicNoThrow) WCHAR[cch + 1];
+        if (m_pszToolTip)
+            wcscpy(m_pszToolTip, pszToolTip);
+    }
+}
+
+inline STDMETHODIMP_(LPCWSTR) CUIFObject::GetToolTip()
+{
+    return m_pszToolTip;
+}
+
+inline STDMETHODIMP_(LRESULT) CUIFObject::OnShowToolTip()
+{
+    return 0;
+}
+
+// FIXME: name
+inline STDMETHODIMP_(void) CUIFObject::OnHideToolTip2()
+{
+}
+
+/// @unimplemented
+inline STDMETHODIMP_(void) CUIFObject::DetachWndObj()
+{
+    //FIXME
+    m_pWindow = NULL;
+}
+
+inline STDMETHODIMP_(void) CUIFObject::ClearWndObj()
+{
+    m_pWindow = NULL;
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+        m_ObjectArray[iItem]->ClearWndObj();
+}
+
+inline STDMETHODIMP_(LRESULT) CUIFObject::OnPaintTheme(HWND hWnd)
+{
+    return 0;
+}
+
+inline STDMETHODIMP_(void) CUIFObject::OnSetFocus(HWND hWnd)
+{
+}
+
+inline STDMETHODIMP_(void) CUIFObject::ClearTheme()
+{
+    CloseThemeData();
+    for (size_t iItem = 0; iItem < m_ObjectArray.size(); ++iItem)
+        m_ObjectArray[iItem]->ClearTheme();
+}