Kemal Zebari 47d69b7749 Validate hex colors when creating/editing labels (#34623)
Resolves #34618.

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Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2025-06-07 11:25:08 +03:00
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