[infographic] when adding new fake data sets, they all have the purple theme instead of cycling through colour themes

[Jouni Helminen]

current situation:

1. First change the device system date to something like 20th of the month, so that you will see several days of data on the infographic.

2. Then create 4 or more random data sets, with 20+ days of data in each - ie. usermetricsinput test "%1 fake data" "no fake data today" phablet 0.2 5.3 3.0 1.0 2 4 5 6 3 1 7 5 2 4 3 2 6

You may want to give them different strings to help separate them from each other

3. The fake data sets get created ok, but they are all purple (should cycle between the 4 colour themes for each set?)