You'll run into worse. I especially like when they print dark brown on black with zero contrast. I have to get a magnifier out and angle them just right so they can be identified. Usually you can find the pinouts on the datasheet
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This is the standard. The notch marks orientation and pin one directly to the left or bottom in this pic as circled. No need for another indication mark.

If you look on your pcb most of the time you see this same notch shape in the outline of the ic, to help you identify.

Just to add a bit of useless trivia to this. The manufacturer doesn't really use brown ink to mark these -- these are actually laser etched into the plastic. This was originally done to thwart counterfeiters as "our parts are laser printed and most counterfeiters cannot do that"... But as it turns out, the counterfeiters just black top the parts and use brown paint and nobody can tell the difference.