Tooltip font too small at high resolutions (2560×1600)

[w1semannn]

Prerequisites

• I have searched for similar issues and confirmed this is not a duplicate

Game Version

• Command & Conquer Generals
• Command & Conquer Generals: Zero Hour
• Other (please specify below)

Operating System

• macOS
• Linux
• Other (please specify below)

Bug Description

Hi, fbraz3
At resolution 2560×1600 on macOS (Apple M1), tooltip text in the command bar popup (unit name, cost, description) is extremely small and barely readable.
Investigation:
I modified ControlBarPopupDescription.wnd (both as loose file override and directly in WindowZH.big) trying sizes 14, 24, 48, 64 for Arial — no visual change. I also changed the font name to Times New Roman — still no change. This confirms that overrideTooltipGadgetFont() in ControlBar.cpp completely overrides the .wnd font, using oldFont->pointSize which always resolves to the design-resolution value (8pt).
Root cause:
overrideTooltipGadgetFont() preserves oldFont->pointSize from the .wnd file without scaling it to the current display resolution. At 2560×1600, this makes 8pt render as roughly 8 physical pixels.
Suggested fix:
Scale the point size by currentHeight / 600.0f (design resolution height) in overrideTooltipGadgetFont:
cppfloat scaleY = (float)TheDisplay->getHeight() / 600.0f;
int scaledSize = max(oldFont->pointSize, (int)(oldFont->pointSize * scaleY));
GameFont *newFont = TheFontLibrary->getFont(kUnicodeFonts[i], scaledSize, oldFont->bold);
Workaround: Resolution 1280×800 makes text readable.
System: macOS, Apple M1, GeneralsX Beta 12

Reproduction Steps

1. Set resolution to 2560×1600 in Options.ini
2. Start any skirmish or campaign mission
3. Hover mouse over any unit or building button in the command bar
4. Observe tooltip popup — text (unit name, cost, description) is extremely small and barely readable

Additional Context

No response