ux: accent button style #4021

Job	Run time
Prepare version string	5s
Build / Build Windows x64	4m 5s
Build / Build Windows ARM64	4m 3s
Build / Build macOS (Intel)	3m 46s
Build / Build macOS (Apple Silicon)	3m 31s
Build / Build Linux	3m 28s
Build / Build Linux (arm64)	3m 36s
Package / Package Linux (linux-arm64)	56s
Package / Package Windows (win-x64)	31s
Package / Package macOS (osx-x64)	21s
Package / Package Windows (win-arm64)	26s
Package / Package Linux (linux-x64)	1m 6s
Package / Package macOS (osx-arm64)	26s
	26m 20s

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