Also tested with an existing system running Raspberry Pi OS Bookworm, 32-bit w/ desktop that had used the rgb-matrix.sh script from a year ago. When running the script to build the rgbmatrix library, ...

If \(A\) is a \(3\times 3\) matrix then we can apply a linear transformation to each rgb vector via matrix multiplication, where \([r,g,b]\) are the original values ...