So, here's some codes. As I find more, I'll update it.

TEXTBOX CODES:

Background:

[ style ]TEXTAREA{background-image:url(http://???)};[ /style ]

[ style ]TEXTAREA{color:???;}[ /style ]

BACKGROUNDS:

Bio:

[ style ]TD{background:url(http://);}[ /style ]

Behind the Bio:

[ style ]BODY{background:url(http://)!Important}[ /style ]

AnGiEgIrL's Profile:

[ style ]TD.title{background:url(http://);}[ /style ]

Badges:

[ style ]TBODY{background:url(http://);}[ /style ]

My Zone And Log Out:

[ style ]DIV.navbar{background-color:???;}[ /style ]

IMAGES:

[ image ]http://www.wallsave.com/wallpapers/1366x768/fairies/106091/fairies-magical-forest-abstract-fantasy-mystial-pixies-106091.jpg[ /image ]

EXAMPLE:


Above The Title:

[ style ]TD.title:before{content:url(http://);}[ /style ]

TEXT COLOR:

[ color=blue ]blue[ /color ]

Color list:
Blue
Red
Orange
Darkblue
Skyblue
Green
Lightgreen
Lightblue
pink
black
grey
yellow
white
brown

Links:

[ style ]A{color:???;}[ /style ]

Other Text Color:

[ style ]TD{color:???;}[ /style ]

Welcome, aNGiEgIrl!

[ style ]DIV.navbar{color:;}[ /style ]
Font:
[ style ]TD{font-style:???;}[ /style ]

TEXT STYLES:

[ b ]bold[ /b ]

[ caps ]small caps[ /caps ]

[ u ]underline[ /u ]

[ big ]larger text[ /big ]

[ small ]smaller text[ /small ]

LINKS:

[ a=dsipaint.com ]DSiPaint[ /a]

[a]dsipaint.com[ /a ]

---

[ line ]

---

That's it for right now! I'm trying to find the font code, so if you know it, please tell me it!
Credit to Bomb factor and someone else.