type color fix for 34c3 dark theme

public/css/theme6.css

@@ -21,7 +21,8 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
-.label.label-warning {
+.label.label-warning,
+.progress-bar.progress-bar-warning {
   color: #000;
 }
 /*!

themes/theme6.less

@@ -44,7 +44,7 @@ THE SOFTWARE.
 @brand-warning:         rgb(255, 255, 51);
 @brand-danger:          rgb(255, 102, 0);
 
-.label.label-warning {
+.label.label-warning, .progress-bar.progress-bar-warning {
   color: #000;
 }