.theme-img-light { display: block; }
.theme-img-dark  { display: none; }

html[data-theme="forest"] .theme-img-light,
html[data-theme="halloween"] .theme-img-light,
html[data-theme="dark"] .theme-img-light,
html[data-theme="dracula"] .theme-img-light,
html[data-theme="night"] .theme-img-light,
html[data-theme="dim"] .theme-img-light {
    display: none !important; 
}

html[data-theme="forest"] .theme-img-dark,
html[data-theme="halloween"] .theme-img-dark,
html[data-theme="dark"] .theme-img-dark,
html[data-theme="dracula"] .theme-img-dark,
html[data-theme="night"] .theme-img-dark,
html[data-theme="dim"] .theme-img-dark {
    display: block !important; 
}