Checkboxes don't work in a few themes.

[jslay88]

Checkboxes do not change state in a few themes (mainly dark themes).

Superhero for sure.

[jslay88]

It appears the 'checked' class is added, but never changes visual state.

[jslay88]

Adding this below all the .ui.checkbox input:checked entries fixes it, but people that know css better than me should probably do a proper pull and merge. :)

/*******************************
         Theme Overrides
*******************************/

@font-face {
  font-family: 'Checkbox';
  src: url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
}

/* Checkmark */

.ui.checkbox label:after,
.ui.checkbox .box:after {
  font-family: 'Checkbox';
}

/* Checked */

.ui.checkbox input:checked ~ .box:after,
.ui.checkbox input:checked ~ label:after {
  content: '\e800';
}

/* Indeterminate */

.ui.checkbox input:indeterminate ~ .box:after,
.ui.checkbox input:indeterminate ~ label:after {
  font-size: 12px;
  content: '\e801';
}

[tarvos21]

@jslay88 Thanks a lot, you are right, the default settings of checkbox are lost when applying customized theme for it. So I have copied the default/modules/checkbox.overrides file to every 'darker' themes, i.e., cyborg, darkly, slate, solar, superhero, united.

[jslay88]

List of themes I noticed the issue with. I have found several other issues with some of the themes as well, and will open issues for those late. (Such as font color on forms Select and Input text in Superhero and others)

Edit: Seems like a lot of issues were fixed with the last commit. Opened two more issues for what I found off the top.

Here was the list that I had for checkboxes being messed up

Cyborg
Darkly
Slate
Superhero
United
Yeti