Ubuntu used a patch for this, but it's just a work-around for now and multiple upstream's developers told me that is not the right approach to use. -- debbug#555134 ...
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ID Status▲ Resolution Sev Product Comp Assignee▲ Reporter Summary
21169 CLOS FIXE nor Sisyphus branding boyarsh cas [Лёгкий Линукс] Необходимы рисунки для шагов установщика "Доп. диски" и "Аутентификация"

File a new bug in the "branding-school-lite-graphics" component of the "Sisyphus" product