Flags are blurry

I do not think they are blurry. Are only with rounded borders, but if you want to solve this, you can access Admin >> Plugins >> Editor, select the plugin World Cup Predictor, look at world-cup-predictor/css/style.css file and locate the inside following excerpt:

.wcup_flag {
border:1px solid gray;
}

Change it to:

.wcup_flag {
border:1px solid gray;
border-radius: 0 !important;
box-shadow: none !important;
}

This will override the rule used on line 358 of the style.css file of your theme.

They were blurry… got answer from WP and changed my style.css in the child.
No problems with your plugin… it works perfectly. Thanks anyway ??