gitea/templates/repo/issue/view_content/sidebar.tmpl

<div class="four wide column">
	<div class="ui segment metas">
		<div class="ui {{if not .IsRepositoryWriter}}disabled{{end}} floating jump select-label dropdown">
			<span class="text">
				<strong>{{.i18n.Tr "repo.issues.new.labels"}}</strong>
				<span class="octicon octicon-gear"></span>
			</span>
			<div class="filter menu" data-action="update" data-issue-id="{{$.Issue.ID}}" data-update-url="{{$.RepoLink}}/issues/labels">
				<div class="no-select item">{{.i18n.Tr "repo.issues.new.clear_labels"}}</div>
				{{range .Labels}}
					<a class="{{if .IsChecked}}checked{{end}} item" href="#" data-id="{{.ID}}" data-id-selector="#label_{{.ID}}"><span class="octicon {{if .IsChecked}}octicon-check{{end}}"></span><span class="label color" style="background-color: {{.Color}}"></span> {{.Name}}</a>
				{{end}}
			</div>
		</div>
		<div class="ui labels list">
			<span class="no-select item {{if .HasSelectedLabel}}hide{{end}}">{{.i18n.Tr "repo.issues.new.no_label"}}</span>
			{{range .Labels}}
				<div class="item">
					<a class="ui label {{if not .IsChecked}}hide{{end}}" id="label_{{.ID}}" href="{{$.RepoLink}}/issues?labels={{.ID}}" style="color: {{.ForegroundColor}}; background-color: {{.Color}}">{{.Name | Sanitize}}</a>
				</div>

			{{end}}
		</div>

		<div class="ui divider"></div>

		<div class="ui {{if not .IsRepositoryWriter}}disabled{{end}} floating jump select-milestone dropdown">
			<span class="text">
				<strong>{{.i18n.Tr "repo.issues.new.milestone"}}</strong>
				<span class="octicon octicon-gear"></span>
			</span>
			<div class="menu" data-action="update" data-issue-id="{{$.Issue.ID}}" data-update-url="{{$.RepoLink}}/issues/milestone">
				<div class="no-select item">{{.i18n.Tr "repo.issues.new.clear_milestone"}}</div>
				{{if .OpenMilestones}}
					<div class="divider"></div>
					<div class="header">
						<i class="octicon octicon-milestone"></i>
						{{.i18n.Tr "repo.issues.new.open_milestone"}}
					</div>
					{{range .OpenMilestones}}
						<div class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name | Sanitize}}</div>
					{{end}}
				{{end}}
				{{if .ClosedMilestones}}
					<div class="divider"></div>
					<div class="header">
						<i class="octicon octicon-milestone"></i>
						{{.i18n.Tr "repo.issues.new.closed_milestone"}}
					</div>
					{{range .ClosedMilestones}}
						<a class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?milestone={{.ID}}"> {{.Name | Sanitize}}</a>
					{{end}}
				{{end}}
			</div>
		</div>
		<div class="ui select-milestone list">
			<span class="no-select item {{if .Issue.Milestone}}hide{{end}}">{{.i18n.Tr "repo.issues.new.no_milestone"}}</span>
			<div class="selected">
				{{if .Issue.Milestone}}
					<a class="item" href="{{.RepoLink}}/issues?milestone={{.Issue.Milestone.ID}}"> {{.Issue.Milestone.Name | Sanitize}}</a>
				{{end}}
			</div>
		</div>

		<div class="ui divider"></div>

		<input id="assignee_id" name="assignee_id" type="hidden" value="{{.assignee_id}}">
		<div class="ui {{if not .IsRepositoryWriter}}disabled{{end}} floating jump select-assignee dropdown">
			<span class="text">
				<strong>{{.i18n.Tr "repo.issues.new.assignee"}}</strong>
				<span class="octicon octicon-gear"></span>
			</span>
			<div class="menu" data-action="update" data-issue-id="{{$.Issue.ID}}" data-update-url="{{$.RepoLink}}/issues/assignee">
				<div class="no-select item">{{.i18n.Tr "repo.issues.new.clear_assignee"}}</div>
				{{range .Assignees}}
					<div class="item" data-id="{{.ID}}" data-href="{{$.RepoLink}}/issues?assignee={{.ID}}" data-avatar="{{.RelAvatarLink}}"><img src="{{.RelAvatarLink}}"> {{.Name}}</div>
				{{end}}
			</div>
		</div>
		<div class="ui select-assignee list">
			<span class="no-select item {{if .Issue.Assignee}}hide{{end}}">{{.i18n.Tr "repo.issues.new.no_assignee"}}</span>
			<div class="selected">
				{{if .Issue.Assignee}}
					<a class="item" href="{{$.RepoLink}}/issues?assignee={{.Issue.Assignee.ID}}"><img class="ui avatar image" src="{{.Issue.Assignee.RelAvatarLink}}"> {{.Issue.Assignee.Name}}</a>
				{{end}}
			</div>
		</div>

		<div class="ui divider"></div>

		<div class="ui participants">
			<span class="text"><strong>{{.i18n.Tr "repo.issues.num_participants" .NumParticipants}}</strong></span>
			<div>
				{{range .Participants}}
					<a href="{{.HomeLink}}">
						<img class="ui avatar image poping up" src="{{.RelAvatarLink}}" data-content="{{.DisplayName}}" data-position="top center" data-variation="small inverted">
					</a>
				{{end}}
			</div>
		</div>

		<div class="ui divider"></div>

		<div class="ui watching">
			<span class="text"><strong>{{.i18n.Tr "repo.issues.watch"}}</strong></span>
			<div>
				<form method="POST" action="{{$.RepoLink}}/issues/{{.Issue.Index}}/watch">
					<input type="hidden" name="watch" value="{{if $.IssueWatch.IsWatching}}0{{else}}1{{end}}" />
					{{$.CsrfTokenHtml}}
					<button class="fluid ui button">
						{{if $.IssueWatch.IsWatching}}
							{{.i18n.Tr "repo.issues.unwatch_issue"}}
						{{else}}
							{{.i18n.Tr "repo.issues.watch_issue"}}
						{{end}}
					</button>
				</form>
			</div>
		</div>
	</div>
</div>