phone_uni/uni_modules/uview-plus/components/u-button/nvue.scss

$u-button-active-opacity:0.75 !default;
$u-button-loading-text-margin-left:4px !default;
$u-button-text-color: #FFFFFF !default;
$u-button-text-plain-error-color:$u-error !default;
$u-button-text-plain-warning-color:$u-warning !default;
$u-button-text-plain-success-color:$u-success !default;
$u-button-text-plain-info-color:$u-info !default;
$u-button-text-plain-primary-color:$u-primary !default;
.u-button {
	&--active {
		opacity: $u-button-active-opacity;
	}
	
	&--active--plain {
		background-color: rgb(217, 217, 217);
	}
	
	&__loading-text {
		margin-left:$u-button-loading-text-margin-left;
	}
	
	&__text,
	&__loading-text {
		color:$u-button-text-color;
	}
	
	&__text--plain--error {
		color:$u-button-text-plain-error-color;
	}
	
	&__text--plain--warning {
		color:$u-button-text-plain-warning-color;
	}
	
	&__text--plain--success{
		color:$u-button-text-plain-success-color;
	}
	
	&__text--plain--info {
		color:$u-button-text-plain-info-color;
	}
	
	&__text--plain--primary {
		color:$u-button-text-plain-primary-color;
	}
}