XF 2.2 Odd gradient borders

[synpres]

Hello, I have an issue with my borders on buttons being gradients, although there is no styling related to borders I can find in my theme (which is a heavily modified XF theme I did myself, and I've never added a gradient here)

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The gradient is applied to the top and left sides of the button, above is an image of the two buttons next to each other (so you can see left & right side), the correct color is #2C2C2C, the color shown on the left, the right side is quite faint as it's very close to the color of the page background but should still be noticeable

 

[Jeremy P]

There are slight borders on buttons in the default style. You would have to overwrite the border color by creating additional CSS rules.