The frame object requires a theme of version 119 or more. In fact
I think until we are totally happy with the window API (for EO) we
might want to bump that version regularly. That would indeed disallow
theme customization for border.edc until it's done.
This patch uses a pretty brute force way to set the theme file to
the default file from EFL installation. elm_config is not reliable
here.
This is very custom made and there may be a more generic way to force
a widget to use a minimum theme version. Yes that could mean ugly
widgets if we change the theme API but at least that would make them
work. Note that the border theme contains no visual elements, so the
colors of the background, etc... should all depend on the user
selected theme. But of course CSD (in Wayland) will have to use the
default theme -- and look grey.
Fixes D4976
For standard windows, we want to create an elm_bg object if
the theme is a legacy one. Otherwise the default theme
doesn't require an extra object, just a rectangle.