Act as a professional Instagram content strategist with 5+ years of experience in visual branding. Teach me how to create a cohesive and engaging Instagram theme that aligns with my [BRAND IDENTITY/PERSONAL STYLE], using a mix of [COLOR PALETTE], [CONTENT TYPES], and [POSTING FREQUENCY]. Break down the process into actionable steps, including how to plan a content calendar, edit photos for consistency, and use Instagram features like Highlights and Reels to enhance the theme. Provide examples of successful themes in [YOUR NICHE] and tips for maintaining the theme without sacrificing creativity. End with a checklist to audit my current profile and align it with the new theme.