check black-dashboard.css for syntax errors

[scrimpys]

Am seeing a lot of errors reported in Pycharm about black-dashboard.css. Overall 13 problems reported. On lines
2108,4247,4516,4520,4524, 12554, 16831, 16838, 16842, 19793.

examples:

Mismatched property value (none | # | [initial | inherit | unset | revert])

Mismatched property value ([ || || || ]? [/ ]? | caption | icon | menu | message-box | small-caption | status-bar | | | [initial | inherit | unset | revert])

Cannot resolve file 'bg.gif'

Term expected: