4.5.2 add 1d pattern
Tips:1d pattern stands for patterns that have grayscale varies only in one
direction.
GUI supports only PNG and BMP format.
The resolution of DLP3010 is 1280 x 720, user should add pattern just one pixel line.
For horizontal pattern sets, please add 1 x 720 pattern.
For vertical pattern sets, please add 1280 x 1 pattern.
If patterns added correctly, you will see pattern showed on the right side. User can
only add 1bit or 8bit pattern in pattern sets. 24bit colour pattern is not supported.
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