¿How can I change this?

[letgamer]

Hi. I'm new, I created my forum and then when I'm going to see the first post, I see some things that didn't like to me, so I want to change this things. I mean those things in this picture.



I want to change/remove the icons and the text as I want. I need to know where need I go to do this (Remove or change this), so please, help me with this.

See ya!

[sAce]

Look in
/theme/{theme_name}/display.template.php

[vivid]

Themes/default/images/theme/quickbuttons.png

I think this image is tackled with css