Monochrome Plasma Logo is not visible on background-color: #232629

[Andrei Rybak]

Hello,

On page https://kde.org/stuff/clipart/ in section "Plasma Logo", the
image https://kde.org/stuff/clipart/logo/plasma-logo-monochrome.svg is
displayed on `background-color: #232629`, which makes it invisible,
because plasma-logo-monochrome.svg itself defines:

     .ColorScheme-Text {
       color:#232629;
     }

which is used to generate the whole image.

Perhaps, this could be improved by adding some kind of contrast
background for this particular <img> tag?