When I take a look at Chromophore skin
I found that the weekview weekday translate is weird...
Cause in Chromophore skin weekview.xml

line 17
<time origin1="TOP-LEFT" x1="0" y1="0" origin2="BOTTOM-RIGHT" x2="0" y2="0" align="TOP-CENTER" element="font.normal" format="%a" />

In .po file Sunday & abbreviated Sun are translated in different word
But weekview's weekday display with setting %a or %A are the same.
Weather widget can display abbreviated weekday,
it seem that it use another method to display.
I think that is a bug and I can't find the error.
Chromophore is not like Shandow4 use week no. to match the weekday img.

After all, Shandow4 is my favorite

The %a in the format returns translated texts from the operating system instead what is defined in the Rainlendar's language file so the result depends on your OS regional settings.

Oops.It seem that's no solution now.
Because Chromophore skin display Chinese weekday out of the edge of windows.
I just edit the xml weekday font to normal to fit it.

Thanks Rainy!