As of version 10September2022v1-Beta-Compilation of Dandelion Sprout's Annoyances List, the colouring seems to mark env_legacy with a dark red marker, as it seems to think it's unsupported:
!#if env_legacy was originally created by uBO to designate that entries should (or should not) be used in the so-called uBlock Origin Legacy builds, officially and strictly said to be for Firefox ≤58, but everyone knew the builds were being used for Pаle Mоon instead. And even with the latter browser's integrity reputation plummeting in the past couple years, and with uBO seemingly removing most info on env_legacy (if such info ever actually existed), it at least seems to still be a supported condition: https://github.com/gorhill/uBlock/blob/a559f5f2715c58fea4de09330cf3d06194ccc897/src/js/static-filtering-parser.js#L3121
As of version 10September2022v1-Beta-Compilation of Dandelion Sprout's Annoyances List, the colouring seems to mark
env_legacywith a dark red marker, as it seems to think it's unsupported:!#if env_legacywas originally created by uBO to designate that entries should (or should not) be used in the so-called uBlock Origin Legacy builds, officially and strictly said to be for Firefox ≤58, but everyone knew the builds were being used for Pаle Mоon instead. And even with the latter browser's integrity reputation plummeting in the past couple years, and with uBO seemingly removing most info onenv_legacy(if such info ever actually existed), it at least seems to still be a supported condition: https://github.com/gorhill/uBlock/blob/a559f5f2715c58fea4de09330cf3d06194ccc897/src/js/static-filtering-parser.js#L3121