>Hi Michel,
>
>How about 1, 2, 7, 31 to represent the number of days in the period. That's how outook's icons show in the calender view.
>
>>>Instead of 1,2,3 and 4 why not T,Y,W and M?
>>
>>Because, it won't be generic anymore for users of other languages. Also, those four icons represent the same type of transaction as oppose to the other 3 next so that's why the number mostly regroup them together.

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Made these as a suggestion (mouseover pictures. Got the border):

Today GIF
Yesterday GIF
Week GIF
Month GIF