| Name | Lines of code | Maintainability | Test coverage |
| lib/glimmer/ui/custom_widget.rb | 289 | D 2 days | D 69% |
| lib/glimmer/swt/custom/code_text.rb | 306 | D 2 days | F 25% |
| samples/elaborate/meta_sample.rb | 307 | B 4 hrs | |
| samples/elaborate/mandelbrot_fractal.rb | 333 | B 6 hrs | |
| samples/hello/hello_tree.rb | 414 | C 1 day | |
| lib/glimmer/swt/table_proxy.rb | 537 | F 6 days | B 85% |
| lib/glimmer/rake_task/scaffold.rb | 617 | F 6 days | |
| samples/hello/hello_canvas_data_binding.rb | 770 | D 2 days | |
| lib/glimmer/swt/widget_proxy.rb | 1,044 | F 1 wk | B 82% |
| lib/glimmer/swt/custom/shape.rb | 1,245 | F 2 wks |