• Type filters should be expanded by default, or eliminate expanding/collapsing entirely (sub-options should still be indented)
• Child processes should be hidden by default
• Should have some visual hint indicating when the filter has been set to a non-default setting
• Indicate to the user when the project appears empty that some items may be excluded (if any filters are active)

Also: could we change it so checking/unchecking a filter immediately reloads the project list instead of having to click "ok". Maybe have a small delay/input buffering to reduce flicker if the user clicks changes several checkboxes quickly.