Would be nice to have player role added as an option to load statuses:

I only want the frame to turn red if a player gets a magic debuff if I am playing a healer.

ahh ok cool that works

What about using the "Player Class&Spec" option ? Simply selecting the healing specs.
Another posibility is to create a "dispellable debufffs" group status, in this way only debuffs your class can dispell will be displayed.

I don't see a debuff status called dispellable debuffs

You have to create a group of debuffs.

1. Goto Statuses/Debuffs/Right Panel
2. Select "Debuffs" (plural)
3. Type a descriptive name for the status, for example "Dispellable" or "Dispellable-Debuffs" or wherever, and click the create button.
4. Goto the new status settings in the debuffs list.
5. By default all debuffs are displayed but in the display section there are a lot of filters.
6. Simply uncheck the "Non Dispellable by Me" option.
7. Link the status to the desired indicator.