Abstract: Described herein is a computer implemented method. The method includes: accessing design data defining one or more design elements of a design; determining a set of target elements, the set of target elements including one or more of the design elements; determining a set of fragments, the set of fragments including one or more primary fragments and one or more background fragments, each primary fragment being a fragment of a design element in the set of target elements, each secondary fragment being a fragment that is a background fragment to a primary fragment; calculating, by a processing unit, a set of fragment contrast scores, the set of fragment contrast scores including a fragment contrast score for each primary fragment in the set of fragments; and calculating an overall score for the set of target elements based on the set of fragment contrast scores.

Abstract: Described herein is a computer implemented method. The method includes: accessing design data defining one or more design elements of a design; determining a set of target elements, the set of target elements including one or more of the design elements; determining a set of fragments, the set of fragments including one or more primary fragments and one or more background fragments, each primary fragment being a fragment of a design element in the set of target elements, each secondary fragment being a fragment that is a background fragment to a primary fragment; calculating, by a processing unit, a set of fragment contrast scores, the set of fragment contrast scores including a fragment contrast score for each primary fragment in the set of fragments; and calculating an overall score for the set of target elements based on the set of fragment contrast scores.

Abstract: Described herein is a computer implemented method. The method includes: accessing design data defining one or more design elements of a design; determining a set of target elements, the set of target elements including one or more of the design elements; determining a set of fragments, the set of fragments including one or more primary fragments and one or more background fragments, each primary fragment being a fragment of a design element in the set of target elements, each secondary fragment being a fragment that is a background fragment to a primary fragment; calculating, by a processing unit, a set of fragment contrast scores, the set of fragment contrast scores including a fragment contrast score for each primary fragment in the set of fragments; and calculating an overall score for the set of target elements based on the set of fragment contrast scores.

Abstract: Described herein is a computer implemented method for automatically recolouring a design. The method includes processing, by a computer processing unit, design data to generate design fragment data that defines fragments of the design. The design fragment data is then processed to generate fragment group data that defines groups of recolourable design fragments. A plurality of recolouring solutions is then generated, each solution defining a colour for each of the one or more fragment groups. The method further includes calculating, according to a fitness function, a score for each recolouring solution of the plurality of recolouring solutions, selecting an optimal recolouring solution based on the calculated scores, and recolouring the design in accordance with the selected recolouring solution.