[Files] Add contrast filters for Files

[JamesKCOS]

Problem statement:

Some student submissions on Canvas have low contrast and are hard to read.

Proposed solution:

Include filters or contrast settings in SpeedGrader for increasing the contrast of submitted documents.

User role(s):

instructor

[KristinL]

Hi @JamesKCOS - Thank you for sharing your idea! The Product Team feels that it aligns with other ideas associated with File Management Functionality and Experience. Please subscribe to that theme to receive updates.