change table style at sidebar

[thanasis1]

hello, i would like to change tha table style appearing at sidebar. i want the blocks to be displayed as the forum's table (tableheader, no border, space between blocks...). what i have to edit?

[KevinL]

Change the gradient associated with it.

[thanasis1]

thank u for the reply,
you mean to change/edit the pictures at images/gradients?

as you can see here the right blocks are awfull because i use darkblue colours.
the sidebar's blocks look the same angly! i have disabled sidebar for this reason)

thank you