The symbols ♥ and ♦ in HTML are displaying as black on Android devices, despite being styled as red in the CSS

In the midst of my card game development using HTML, JS, and CSS on the Meteor platform. To represent the hearts suit, I utilize ♥ and for diamonds, it's ♦. The color scheme is crimson with color: #FF0000; in the CSS code. The font-family is elegantly styled as font-family: 'Times', serif;. Interestingly, these elements appear in red on desktops or iPhones but mysteriously turn black on Chrome browsers found on Android devices. Strangely, the rank remains scarlet, suggesting a quirky behavior specifically related to the icons themselves.

Prior to showcasing the suit string, each element undergoes the SafeString function within Spacebar.

suitString: function(suit) {
    var suits = {'H': '♥', 'S':'♠', 'D':'♦', 'C':'♣'}

    return Spacebars.SafeString(suits[suit]);
  }

The discrepancy seems tied to the font rendering process for the icons on the Android operating system. Why this anomaly happens still eludes me. Could it be attributed to how the SafeString function operates?

Seeking insight into resolving this conundrum and ensuring consistent coloring across all platforms minus resorting to images for the suits.

Your input will be greatly appreciated!

Answer №1

It appears that there is a peculiar font rendering bug specific to Android 5.0.x. This issue manifests on both web pages and applications, but interestingly enough, it seems to be isolated to devices running Android 5.0.1.

I have tested this problem on Android 5.1.0 and 4.2.x, but I have not been able to reproduce it on those versions.

Initially, I was perplexed by this behavior and incorrectly assumed that HTML tables were causing color acceptance issues.

To see the problem in action, you can visit my test page:

Upon viewing the page on an Android 5.0.1 device, you will notice that the solid red suits are not correctly colored, resulting in a less-than-desirable appearance of empty suits. It seems like resorting to using images may be the most practical solution.

Update:

Further investigation has led me to believe that this quirk is more likely related to TouchWiz (exclusive to Samsung devices). In their updates post-5.0.1, Samsung implemented changes to font rendering for solid suit colors that render them similar to emojis, making them resistant to custom coloring. Interestingly, this phenomenon does not occur on non-Samsung devices, but rather on all devices with Android versions surpassing 5.0.0.

It's worth noting that HTC has also made similar modifications, albeit retaining the original solid suit colors. However, users of newer HTC devices may find themselves limited to black spades or clubs, and red hearts or diamonds when attempting to change suit colors.

This issue is not exclusive to Samsung or HTC, as other device manufacturers with customized Android interfaces may also encounter similar challenges.

Answer №2

Encountering the same issue while using ♥ (black heart suit, as referenced in http://www.w3schools.com/charsets/ref_utf_symbols.asp)

On a PC, adjusting the color attribute with CSS solves the problem. However, on Android devices, the heart appears black regardless of the specified color.

This seems to be an android browser rendering issue causing the heart icon to display in black.

To workaround this, I have started using ♡ instead (white empty heart) which allows for CSS colors not just on PCs but also on Android browsers. Alternatively, incorporating an image with the desired color or building an SVG within the code can utilize any CSS color.

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