big size of legacy-theme/ts/color-schemes.js

[nazarifard]

as shown in right side of following image legacy-theme takes a big part of production final app. (322 KB)
what does mean legacy-theme? is it mandatory for all application? isnt there any configuration or setting option that we can remove unused theme and reduce the size of final production app?
while Primer/react generates required .css seperate file is "color-schemes.js" required yet?
any idea?

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[langermank]

Hey @nazarifard! We will likely be removing this in our next major release. We've changed how themes are utilized in Primer React, moving away from styled-components and into CSS Modules. This guide explains how to import the CSS themes for now, but until we do a major release we still need to support the older legacy JS themes.