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Support > Frequently Asked Questions > How is a 24-bit palletized image displayed on the SLCD/SLCD6/SLCD43?

How is a 24-bit palletized image displayed on the SLCD/SLCD6/SLCD43?

The SLCDx controllers can run either 8-bit color or high-color firmware (the original SLCD is 8-bit only, for high-color use the SLCD+). In 8-bit color firmware, when a 24-bit “exact” palletized image is displayed, the bitmap routine maps the 24-bit color to the closest available in the fixed SLCD palette. In high-color firmware, the BMPload program converts 24-bit color bitmaps to 16-bit color (RGB565 format) before they are stored on the controller board.