为离子标签添加背景颜色

Question

我使用Ionic 4，我创建了一个用于导航的Ionic选项卡页面应用程序。我现在想做的是在我的ion-tabs中添加一个ion-tabs，但是我尝试过的任何东西都没有起作用。我尝试将$colors变量添加到我的variable.scss中，并使用color="primary"，但这不起作用。这是我的代码：

HTML

<ion-tabs>
  <ion-tab label="Home" icon="home" href="/tabs/(home:home)">
    <ion-router-outlet name="home"></ion-router-outlet>
  </ion-tab>
  <ion-tab label="Passport" icon="information-circle" href="/tabs/(passport:passport)">
    <ion-router-outlet name="passport"></ion-router-outlet>
  </ion-tab>
  <ion-tab label="Tours" icon="contacts" href="/tabs/(tours:tours)">
    <ion-router-outlet name="tours"></ion-router-outlet>
  </ion-tab>
</ion-tabs>

Variable.scss

// Ionic Variables and Theming. For more info, please see:
// http://ionicframework.com/docs/theming/
/** Ionic CSS Variables **/
:root {

    /** primary **/
    --ion-color-primary: #3880ff;
    --ion-color-primary-rgb: 56,128,255;
    --ion-color-primary-contrast: #ffffff;
    --ion-color-primary-contrast-rgb: 255,255,255;
    --ion-color-primary-shade: #3171e0;
    --ion-color-primary-tint: #4c8dff;
    /** secondary **/
    --ion-color-secondary: #0cd1e8;
    --ion-color-secondary-rgb: 12,209,232;
    --ion-color-secondary-contrast: #ffffff;
    --ion-color-secondary-contrast-rgb: 255,255,255;
    --ion-color-secondary-shade: #0bb8cc;
    --ion-color-secondary-tint: #24d6ea;
    /** tertiary **/
    --ion-color-tertiary: #7044ff;
    --ion-color-tertiary-rgb: 112,68,255;
    --ion-color-tertiary-contrast: #ffffff;
    --ion-color-tertiary-contrast-rgb: 255,255,255;
    --ion-color-tertiary-shade: #633ce0;
    --ion-color-tertiary-tint: #7e57ff;
    /** success **/
    --ion-color-success: #10dc60;
    --ion-color-success-rgb: 16,220,96;
    --ion-color-success-contrast: #ffffff;
    --ion-color-success-contrast-rgb: 255,255,255;
    --ion-color-success-shade: #0ec254;
    --ion-color-success-tint: #28e070;
    /** warning **/
    --ion-color-warning: #ffce00;
    --ion-color-warning-rgb: 255,206,0;
    --ion-color-warning-contrast: #ffffff;
    --ion-color-warning-contrast-rgb: 255,255,255;
    --ion-color-warning-shade: #e0b500;
    --ion-color-warning-tint: #ffd31a;
    /** danger **/
    --ion-color-danger: #f04141;
    --ion-color-danger-rgb: 245,61,61;
    --ion-color-danger-contrast: #ffffff;
    --ion-color-danger-contrast-rgb: 255,255,255;
    --ion-color-danger-shade: #d33939;
    --ion-color-danger-tint: #f25454;
    /** dark **/
    --ion-color-dark: #222428;
    --ion-color-dark-rgb: 34,34,34;
    --ion-color-dark-contrast: #ffffff;
    --ion-color-dark-contrast-rgb: 255,255,255;
    --ion-color-dark-shade: #1e2023;
    --ion-color-dark-tint: #383a3e;
    /** medium **/
    --ion-color-medium: #205532;
    --ion-color-medium-rgb: 152,154,162;
    --ion-color-medium-contrast: #ffffff;
    --ion-color-medium-contrast-rgb: 255,255,255;
    --ion-color-medium-shade: #86888f;
    --ion-color-medium-tint: #a2a4ab;
    /** light **/
    --ion-color-light: #f4f5f8;
    --ion-color-light-rgb: 244,244,244;
    --ion-color-light-contrast: #000000;
    --ion-color-light-contrast-rgb: 0,0,0;
    --ion-color-light-shade: #d7d8da;
    --ion-color-light-tint: #f5f6f9;
}

Answer 1

可以通过将css应用于.tabbar类直接更改背景。

.tabs-md .tabbar , .tabs-ios .tabbar{
    background: red;
}