Hi aceng,
thanks a lot for the drafts. I like
#5 best. Maybe you can try to make the "C" in the icon in
#5 not "peaked" at the two endings.
@
#3 and
#4: The idea looks great. However it's a bit hard to read the "M" in the icon as an "M". Could you try to make the "m" completely red? (right now one bar of it is grey which makes it hard to read as an "m".
Out of
#3 and
#4 I like
#4 best. Maybe you can try that. Separating the two letters in the icon from each other could maybe also help reading it as two letters.
Best regards and thanks a lot in advance,
Stefan