can you include a system for customize most of the properties fields with "design" (e.g. Reproducable is on top, Type, too and Priority on bottom, etc.)?
The main feature request wasn't the style, but the properties fields, if you can arrange them or add some new or delete, etc.
A rearrange field feature would do very little other than bloat the script. If you want to rearrange just edit the templates, if you want to add make a plugin like the percent field.