Display tech pictures in log list when new level reached, & something else.

Description

I think this can give user a simple overview to new tech level, rather than read those description to find out the name.

If possible, some important infromation like the name of new tech in the log, should be better when displayed with other color, which will obviously make them more sonorous.

Last suggest: if player reach more than 1 new levels for the same tech group,the lower one could be neglected or merged into one report log. This can also clearly improve the efficieny of our log list.

Thanks.