This should be a widget for the contrasts list in the project class. The widget should be placed in the Contrast tab and should be laid out similar to the mock below.

• The list of contrast are shown on the left of the widget. This is a replacement for the previous tab based arrangement, changing the selected contrast name from the list should update the other widgets
• In the edit mode a new empty contrast is created when the plus button is pressed and the selected contrast(s) removed when the trash button is clicked.
• Resampling and repeat layers checkboxes should selectable in both display and edit mode, if their implementations do not lead to any drastic changes.
• Repeat layers has not been implemented yet in RAT so this can be left out if this is still the case when implementing. In the design the 1x signifies the number of times to repeat. The x should be added as a suffix, the user should only have to type the actual number
• If the project is domains and standard layer, the model layer becomes the domain contrasts instead and the domain ratio option is available
• For Custom layers and XY projects, the layer/domain contrast is replaced with the custom files.
• While at least one contrasts is required, the contrast list can still be empty. We could either make it so it can never be empty (create a default and prevent it from being deleted) or create an empty screen as shown below

Custom Layer or XY

Domains

Empty