openOutpaint-webUI-extension/app/css/ui/toolbar.css

#ui-toolbar {
	align-content: center;

	width: 60px;

	border-radius: 5px;

	color: var(--c-text);
	background-color: var(--c-primary);
}

#ui-toolbar * {
	user-select: none;
}

#ui-toolbar .handle {
	display: flex;
	align-items: center;
	justify-content: center;

	height: 10px;
}

#ui-toolbar .handle > .line {
	width: 80%;
	border-top: 2px #777 dotted;
}

#ui-toolbar .tool .tool-icon {
	filter: invert(60%);
}
#ui-toolbar .tool.using .tool-icon {
	filter: invert(80%);
}
#ui-toolbar .tool:hover .tool-icon {
	filter: invert(90%);
}

/* Toolbar lock indicator */
#ui-toolbar .lock-indicator {
	position: absolute;
	display: none;

	padding: 0;

	right: 2px;
	top: 10px;

	width: 15px;
	height: 15px;

	background-color: red;

	-webkit-mask-image: url("../../res/icons/lock.svg");
	-webkit-mask-size: contain;
	mask-image: url("../../res/icons/lock.svg");
	mask-size: contain;
}

/* The separator */
#ui-toolbar .separator {
	width: 80%;
	margin: auto;
	align-self: center;
	border-top: 1px var(--c-hover) solid;
}

/* Styles for the tool buttons */
#ui-toolbar .tool {
	display: flex;
	align-items: center;
	justify-content: center;

	aspect-ratio: 1;
	margin: 5px;
	border-radius: 5px;

	cursor: pointer;

	transition-duration: 50ms;
}

#ui-toolbar .tool.using {
	background-color: var(--c-active);
}

#ui-toolbar .tool:hover {
	background-color: var(--c-hover);
}

#ui-toolbar .tool:active {
	background-color: var(--c-hover);
	filter: brightness(120%);
}