CSS style color uneffective on star character (★) on Samsung with Android 4.4 KitKat

I found what the problem was. It’s inside the fonts of the system, in this file exactly :

/system/fonts/NotoColorEmoji.ttf

By changing this font (Samsung emoji) with another with native Android emoji, the stars appear normally. I found the method here : XDA - [MOD] Emoji iOS / Google on Samsung S4 Kit Kat.

So it’s not possible to tweak Samsung stars directly.

Since I have multiple colors and sizes stars, work in responsive design and need to manage retina and others HD displays, image were too onerous to implement.

I tried CSS shapes, but as I play with different sizes in responsive design (changing root font-size in em modifies the whole page), something accurate in one size, was not in another.

So I used font-face.
On Icomoon, I picked the star and made a custom font. I put the correct style and that’s it ! I can apply css like I want.

The code looks like this :

HTML :

<span class="icon-star"></span>

CSS :

@font-face {
    font-family: 'icomoon';
    src:url('fonts/icomoon.eot?4n7iw5');
    src:url('fonts/icomoon.eot?#iefix4n7iw5') format('embedded-opentype'),
        url('fonts/icomoon.woff?4n7iw5') format('woff'),
        url('fonts/icomoon.ttf?4n7iw5') format('truetype'),
        url('fonts/icomoon.svg?4n7iw5#icomoon') format('svg');
    font-weight: normal;
    font-style: normal;
}

[class^="icon-"], [class*=" icon-"] {
    font-family: 'icomoon';
    speak: none;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;

    /* Better Font Rendering =========== */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-star:before {
    content: "\e600";
}

I know this was asked 3 years ago, but I recently ran into the same issue. One way is to use the css shadow hack Credit goes to Tigran for the original solution:

.orange {
  color: transparent;  
  text-shadow: 0 0 0 orange;
}