pref: Use base-info-color variable to unify non important prominent text

[AirboZH]

增加变量以适配主题颜色

Resolve #88

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[ruibaby]

我们是否可以直接新建一个统一的变量，命名为 base-info-color 或者 base-accent-color，用于为非重要突出的文字统一设置颜色。

[AirboZH]

我们是否可以直接新建一个统一的变量，命名为 base-info-color 或者 base-accent-color，用于为非重要突出的文字统一设置颜色。

没问题！除了这个 meta-info 还有什么字段是 非重要突出文字 呢

[ruibaby]

我们是否可以直接新建一个统一的变量，命名为 base-info-color 或者 base-accent-color，用于为非重要突出的文字统一设置颜色。

没问题！除了这个 meta-info 还有什么字段是 非重要突出文字 呢

比如列表项中的点赞、回复按钮的图标和文字默认颜色，改为 base-info-color 变量之后，hover 的时候可以设置为 base-color。

还有 Emoji 图标同上。

[AirboZH]

我认为列表项中的点赞、回复按钮的图标和文字默认颜色可以设置为 base-info-color 但是 Emoji 图标还是和左侧用户名颜色对齐可能更好些。

[ruibaby]

@AirboZH Okay

[AirboZH]

ping @ruibaby

[ruibaby]

/lgtm

感谢 @AirboZH 的贡献。

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