Worked on enhancing the sst/opentui repository by implementing targeted rendering performance optimizations focused on UI throughput for translucent elements and text buffers. The approach involved skipping fully transparent draws within the render buffer and introducing faster color blending routines, both aimed at reducing unnecessary draw calls and minimizing color-blending overhead. To quantify these improvements, a new benchmarking suite was developed, enabling precise measurement of rendering throughput. The work was carried out using Zig and leveraged skills in graphics programming, buffer management, and performance optimization. No major bug fixes were logged, as the primary emphasis remained on measurable native-code efficiency gains.