Update and fix documentation

docs/downloads.md

@@ -211,19 +211,19 @@ cd xtd_path_name
 
 ### xtd
 
-[xtd](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.png)
+[xtd](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.logo.png)
 
-[xtd.core](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.core.png)
+[xtd.core](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.core.logo.png)
 
-[xtd.drawing](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.drawing.png)
+[xtd.drawing](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.drawing.logo.png)
 
-[xtd.forms](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.forms.png)
+[xtd.forms](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.forms.logo.png)
 
-[xtd.tunit](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.tunit.png)
+[xtd.tunit](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/xtd.tunit.logo.png)
 
 ### gammasoft
 
-[gammasoft](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/gammasoft.png)
+[gammasoft](https://github.com/gammasoft71/xtd/blob/master/docs/pictures/logo/gammasoft.logo.png)
 
 ______________________________________________________________________________________________
 

docs/doxygen/doxygen/main_page.dox

@@ -23,19 +23,19 @@
 /// xtd is composed of several libraries.
 ///
 /// @subsection coreSubSection xtd.core
-/// @image html docs/pictures/xtd.core.png
+/// <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__core.html"><img src="xtd.core.png"></a>
 /// The <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__core.html">xtd.core</a> library is modern C++17/20 libraries of classes, interfaces, and value types that provide access to system functionality. It is the foundation on which c++ applications, components, and controls are built.
 ///
 /// @subsection DrawingSubSection xtd.drawing
-/// @image html docs/pictures/xtd.drawing.png
+/// <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__drawing.html"><img src="xtd.drawing.png"></a>
 /// The <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__drawing.html">xtd.drawing</a> library contains types that support basic GDI+ graphics functionality. Child namespaces support advanced two-dimensional and vector graphics functionality, advanced imaging functionality, and print-related and typographical services. A child namespace also contains types that extend design-time user-interface logic and drawing.
 ///
 /// @subsection FormsSubSection xtd.forms
-/// @image html docs/pictures/xtd.forms.png
+/// <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__forms.html"><img src="xtd.forms.png"></a>
 /// The <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__forms.html">xtd.forms</a> library contains classes for creating Windows-based applications that take full advantage of the rich user interface features available in the Microsoft Windows, Apple macOS and linux base operating system.
 ///
 /// @subsection TUinitSubSection xtd.tunit
-/// @image html docs/pictures/xtd.tunit.png
+/// <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__tunit.html"><img src="xtd.tunit.png"></a>
 /// The <a href="https://gammasoft71.github.io/xtd/reference_guides/latest/group__xtd__tunit.html">xtd.tunit</a> library is a unit-testing framework for modern C++17/20 inspired by <a href="https://docs.microsoft.com/en-us/visualstudio/test/microsoft-visualstudio-testtools-cppunittestframework-api-reference">Microsoft.VisualStudio.TestTools.Cpp</a>.
 ///
 /// See <a href="https://gammasoft71.github.io/xtd/docs/documentation/Guides/Overview/Libraries/hierarchy">xtd libraries hierarchy</a>.