In a recent update, signs on Minecraft Bedrock Edition can be colored using dyes. Before, you had to use a weird symbol.
While this dye update is convenient, it has also made the signs very muted in color.
Attached are two pictures, one of before the update, and one of after (the sign on the warped planks is before, the sign on the bricks is after).
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We're tracking this issue in MCPE-117516, so this ticket is being resolved and linked as a duplicate.
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