using standard theme
and accessing the "Activity report"
there is no gap between icons and text displayed on the right.

See attachment for more details.

A way to fix this, is by changing line 80 of theme/base/style/core.css
from

img.icon {height:16px;vertical-align:middle;width:16px;}

to

img.icon {height:16px;vertical-align:middle;width:16px;padding-right:4px;}