Love editing code in textpattern? Wish you had more room to write your code?
Go find your default texpattern 4.2.0 .css file located in: /textpattern/theme/classic/textpattern.css
Copy the CSS below and paste it at the end and hit save.
#page-page tr td.column:nth-of-type(2), #page-form #edit tr td:nth-of-type(2), #page-css #edit tr td:nth-of-type(2) {
width: 80%;
}
textarea#html.code, textarea#form.code, textarea#css.code {
width: 100%;
}
If you have another txp admin theme enabled it may not work. But you get the idea of what the above code is doing.