Issue #2080217 by Wim Leers, tkoleary, Bojhan: Polish entity toolbar visually.

core/misc/icons/000000/ex.svg

core/misc/icons/5181c6/pencil.svg

core/misc/icons/787878/ex.svg

core/misc/icons/bebebe/ex.svg

core/misc/icons/ffffff/ex.svg

core/modules/ckeditor/css/ckeditor.css

core/modules/edit/css/edit.icons.css

core/modules/edit/css/edit.module.css

core/modules/edit/css/edit.theme.css

core/modules/edit/edit.module

core/modules/edit/images/icon-close.png

core/modules/edit/js/editors/directEditor.js

core/modules/edit/js/editors/formEditor.js

core/modules/edit/js/theme.js

core/modules/edit/js/views/EditorDecorationView.js

core/modules/edit/js/views/EditorView.js

core/modules/edit/js/views/EntityToolbarView.js

core/modules/editor/js/editor.formattedTextEditor.js

core/themes/seven/edit.css

core/themes/seven/seven.info.yml