Change:
Theme pictured is Sapphire. ! Possibly related to Code pointer
Blending colors in vscode yields rgba format, so we should add that support to !
issue
Repro for this is to set the following settings and try find in terminal:

Discussion:
"vscode-proxy-agent": "^0.12.0", "vscode-regexpp": "^3.1.0", "vscode-textmate": "7.0.1", <del> "xterm": "4.19.0-beta.47", </del> <ins> "xterm": "4.19.0-beta.49", </ins> "xterm-addon-search": "0.9.0-beta.37", "xterm-addon-serialize": "0.7.0-beta.12", "xterm-addon-unicode11": "0.4.0-beta.3", "xterm-addon-webgl": "0.12.0-beta.36", <del> "xterm-headless": "4.19.0-beta.47", </del> <ins> "xterm-headless": "4.19.0-beta.49", </ins> "yauzl": "^2.9.2", "yazl": "^2.4.3" },

"tas-client-umd": "0.1.5", "vscode-oniguruma": "1.6.1", "vscode-textmate": "7.0.1", <del> "xterm": "4.19.0-beta.47", </del> <ins> "xterm": "4.19.0-beta.49", </ins> "xterm-addon-search": "0.9.0-beta.37", "xterm-addon-unicode11": "0.4.0-beta.3", "xterm-addon-webgl": "0.12.0-beta.36"

resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.12.0-beta.36.tgz#460f80829a78c979a448d5b764699af3f0366ff1" integrity sha512-sgX7OHSGZQZE5b4xtPqd/5NEcll0Z+00tnTVxKZlXf5XEENcG0tnBF4I4f+k9K3cmjE1UIUVG2yYPrqWlYCdpA== <del> xterm@4.19.0-beta.47: version "4.19.0-beta.47" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.47.tgz#f5931201346a485e3bcb29d24e83583727e55707" integrity sha512-c8EcCSWCHnFYNdRMTnJIpYTV9J2Ze7kdB1GhTcPO2ipMEsqaP/u6Ca8rgBWwV9HeEVfe4rGRqWW2qcSy4U9hMQ== </del> <ins> xterm@4.19.0-beta.49: version "4.19.0-beta.49" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.49.tgz#96d0d748c97a2f0cfa4c6112bc4de8b0d5d559fe" integrity sha512-qPhOeGtnB357mZOvfDckVlPDR7EDkSASQrB3aujhjgJlOiBBqcNRJcuSvF7v1DOho7xdEI9UQxiSiT5diHhMlg== </ins>

resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.12.0-beta.36.tgz#460f80829a78c979a448d5b764699af3f0366ff1" integrity sha512-sgX7OHSGZQZE5b4xtPqd/5NEcll0Z+00tnTVxKZlXf5XEENcG0tnBF4I4f+k9K3cmjE1UIUVG2yYPrqWlYCdpA== <del> xterm-headless@4.19.0-beta.47: version "4.19.0-beta.47" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-4.19.0-beta.47.tgz#9d5af8145c42b9a6241a040bb244b877c149761b" integrity sha512-chVTURPMNDEerQIsN4lIRotpXCfJsTHioZGQxDBNdktZO1gMXGvNxDjzsbsJg5ikLN5llz/HLDfXZrjCeb3elg== xterm@4.19.0-beta.47: version "4.19.0-beta.47" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.47.tgz#f5931201346a485e3bcb29d24e83583727e55707" integrity sha512-c8EcCSWCHnFYNdRMTnJIpYTV9J2Ze7kdB1GhTcPO2ipMEsqaP/u6Ca8rgBWwV9HeEVfe4rGRqWW2qcSy4U9hMQ== </del> <ins> xterm-headless@4.19.0-beta.49: version "4.19.0-beta.49" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-4.19.0-beta.49.tgz#8e4178620be9a9dee25a586ef992a6fc621a829a" integrity sha512-uRnHpR2pv1MJPbE3sa7XbP6x0uHubAWVMbiD26e3a5ICtWJQVVpLojkA0t4qU7CoMX85pRL1rIclg9CKY0B0xA== xterm@4.19.0-beta.49: version "4.19.0-beta.49" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.49.tgz#96d0d748c97a2f0cfa4c6112bc4de8b0d5d559fe" integrity sha512-qPhOeGtnB357mZOvfDckVlPDR7EDkSASQrB3aujhjgJlOiBBqcNRJcuSvF7v1DOho7xdEI9UQxiSiT5diHhMlg== </ins> yallist@^4.0.0: version "4.0.0"

resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.12.0-beta.36.tgz#460f80829a78c979a448d5b764699af3f0366ff1" integrity sha512-sgX7OHSGZQZE5b4xtPqd/5NEcll0Z+00tnTVxKZlXf5XEENcG0tnBF4I4f+k9K3cmjE1UIUVG2yYPrqWlYCdpA== <del> xterm-headless@4.19.0-beta.47: version "4.19.0-beta.47" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-4.19.0-beta.47.tgz#9d5af8145c42b9a6241a040bb244b877c149761b" integrity sha512-chVTURPMNDEerQIsN4lIRotpXCfJsTHioZGQxDBNdktZO1gMXGvNxDjzsbsJg5ikLN5llz/HLDfXZrjCeb3elg== xterm@4.19.0-beta.47: version "4.19.0-beta.47" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.47.tgz#f5931201346a485e3bcb29d24e83583727e55707" integrity sha512-c8EcCSWCHnFYNdRMTnJIpYTV9J2Ze7kdB1GhTcPO2ipMEsqaP/u6Ca8rgBWwV9HeEVfe4rGRqWW2qcSy4U9hMQ== </del> <ins> xterm-headless@4.19.0-beta.49: version "4.19.0-beta.49" resolved "https://registry.yarnpkg.com/xterm-headless/-/xterm-headless-4.19.0-beta.49.tgz#8e4178620be9a9dee25a586ef992a6fc621a829a" integrity sha512-uRnHpR2pv1MJPbE3sa7XbP6x0uHubAWVMbiD26e3a5ICtWJQVVpLojkA0t4qU7CoMX85pRL1rIclg9CKY0B0xA== xterm@4.19.0-beta.49: version "4.19.0-beta.49" resolved "https://registry.yarnpkg.com/xterm/-/xterm-4.19.0-beta.49.tgz#96d0d748c97a2f0cfa4c6112bc4de8b0d5d559fe" integrity sha512-qPhOeGtnB357mZOvfDckVlPDR7EDkSASQrB3aujhjgJlOiBBqcNRJcuSvF7v1DOho7xdEI9UQxiSiT5diHhMlg== </ins> y18n@^3.2.1: version "3.2.2"