Split off from https://github.com/openjdk/jfx/pull/837
This uses a precompiled regex pattern and cleans up the code in WebColorFieldSkin a bit. ------------- Commit messages: - Use a precompiled Pattern and simplify code Changes: https://git.openjdk.org/jfx/pull/1032/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1032&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8302472 Stats: 31 lines in 1 file changed: 7 ins; 13 del; 11 mod Patch: https://git.openjdk.org/jfx/pull/1032.diff Fetch: git fetch https://git.openjdk.org/jfx pull/1032/head:pull/1032 PR: https://git.openjdk.org/jfx/pull/1032
