LCL: docs

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46190 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: Improved painting of the clNone color icon in TColorBox. Issue #26707, patch from wp.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46191 4005530d-fff6-0310-9dd1-cebe43e6787f