Describe the bug
With the Light preset and Glass effect enabled, button are black and the toolbar background is light — good contrast.
But when Glass is disabled, both the buttons and the toolbar background become very similarly dark, making them hard to tell apart.
This issue does not occur with the Dark preset — good contrast whether Glass is enabled or not.
Screenshots
(Light Preset and Glass enabled)
(Light Preset and Glass disabled, buttons are indistinguishable)
(Light Preset and Glass disabled, buttons are indistinguishable)
Additionally, the above refers to the button on the bottom toolbar, but let me also briefly mention the display issue of the window control buttons in the top-right corner.
These window control buttons shouldn't have a border.
For example, when the background is light green (a fairly light color), the lines of these buttons should be black, just like the buttons in the toolbar below. However, they currently appear as white lines with a black outline, which looks bad.

Describe the bug
With the Light preset and Glass effect enabled, button are black and the toolbar background is light — good contrast.
But when Glass is disabled, both the buttons and the toolbar background become very similarly dark, making them hard to tell apart.
This issue does not occur with the Dark preset — good contrast whether Glass is enabled or not.
Screenshots
(Light Preset and Glass enabled)
(Light Preset and Glass disabled, buttons are indistinguishable)
(Light Preset and Glass disabled, buttons are indistinguishable)
Additionally, the above refers to the button on the bottom toolbar, but let me also briefly mention the display issue of the window control buttons in the top-right corner.
These window control buttons shouldn't have a border.
For example, when the background is light green (a fairly light color), the lines of these buttons should be black, just like the buttons in the toolbar below. However, they currently appear as white lines with a black outline, which looks bad.