Bar graph missing styles solved

I have solved the missing styles on bar graph, you need to edit tpcmem-template.php and replace background-color with background on the line:

<div class=”widget” id=”tpcmem_pbar” style=”width: <?php echo $gPercent; ?>%; background-color: <?php echo $gColor; ?>;”>

http://wordpress.org/plugins/tpc-memory-usage/