do not set the size of the inputField at all, if the size is too small (e.g. because it was not defined)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37047 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Material panel background fix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37048 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e