**Design Breakdown:**

1. **Background Color:**
   - Change from a light background to a soft pastel color (e.g., light lavender or pale peach) to create a different mood.

2. **Geometric Shapes:**
   - Use a mix of circles and hexagons instead of triangles to diversify the shape elements.
   - Opt for different sizes for the shapes to create more visual interest.

3. **Color Palette:**
   - Replace the existing color scheme with cooler tones, such as shades of teal, purple, and white.

4. **Text:**
   - Modify the text to say "GEOMETRIC DESIGN" instead of "ABSTRACT BACKGROUND."
   - Change the font style to something more playful or modern, and adjust the color to a contrasting tone for better visibility.

5. **Layout:**
   - Rearrange the shapes so they are more evenly distributed across the corners instead of concentrated only on the edges. 

6. **Additional Elements:**
   - Introduce subtle gradients within the shapes for added depth and dimension. 

This altered design will maintain an abstract feel while providing a fresh visual identity.