Notwithstanding anything to the contrary in this bylaw, and as part of definitive plan review, the Planning Board may approve a comprehensive signage master plan for the project which, if approved by the Planning Board, may allow for signage which deviates from the specific sign requirements of the Zoning Bylaw, including § 195-6.6, provided that such signage would, in the opinion of the Planning Board, be consistent with the general purpose and intent of § 195-18.9. The signage master plan proposal should show proposed sizes, locations, and general design approach for signs, banners, awnings, etc. in such detail as the Planning Board may deem reasonably necessary to make a decision to approve such master plan. Following approval of a signage master plan as part of any definitive plan, signs may be installed, removed, and replaced with the approval of the Building Inspector, provided that such signage conforms to the signage plan approved in the definitive plan decision.